Metadata: Documentation

Metadata is a powerful, advanced and modern SEO component for Joomla, that allows you to manage any kind of metadata on your site.

The documentation is also available within the application by using the Documentation button, or by hovering the mouse over help points.

Quick Start

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After initial installation the extension is ready to be used under the Components menu. Make sure that you clear the Cache of your Joomla and browser.

Standard Sets

Create, manage, and add items to specific pages.

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New/Edit Standard Set

Title
Set a title for the list in the backend. It will not be used in the generated HTML.

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Elements

Title
(Default / Custom)
The title of a page as it appears on the browser window, search engine results and other applications. Must be between 50-60 characters. Titles longer than 60 characters may be truncated in search results. Bing recommends titles of 65 characters maximum, and will reject pages that titles exceed 70 characters.


Description
(Default / Custom / Off)
The meta description generally informs and interests users with a short, relevant summary of what a particular page is about. It is like a pitch that convince the user that the page is exactly what they're looking for. Google recommends meta descriptions between 155-160 characters or they will be truncated in search results. Bing recommends meta descriptions of 160 characters maximum.


Keywords
(Default / Custom / Off)
A comma separated list of words, related to the content of the page. Note that keywords do not have any effect on SEO anymore.


Robots
(Use Global / Default / Custom / Off)
The robots meta tag rule applies to search engine crawlers and lets you utilize a granular, page-specific approach to controlling how an individual page should be indexed and served to users in search results. You can set more than one comma separated values. Note that rules such as all or index,follow are the default values for search engines and have no effect if explicitly set.

noindex: Do not show this page, media, or resource in search results. If you don't specify this rule, the page, media, or resource may be indexed and shown in search results.

nofollow: Do not follow the links on this page. If you don't specify this rule, search engines may use the links on the page to discover those linked pages.

none: Equivalent to noindex,nofollow.

noarchive: Do not show a cached link in search results. If you don't specify this rule, search engines may generate a cached page and users may access it through the search results.

nosnippet: Do not show a text snippet or video preview in the search results for this page. A static image thumbnail (if available) may still be visible, when it results in a better user experience. If you don't specify this rule, search engines may generate a text snippet and video preview based on information found on the page.

indexifembedded: Search engines are allowed to index the content of a page if it's embedded in another page through iframes or similar HTML tags, in spite of a noindex rule. It only has an effect if it's accompanied by noindex.

notranslate: Don't offer translation of this page in search results. If you don't specify this rule, search engines may provide a translation of the title link and snippet of a search result for results that aren't in the language of the search query.

noimageindex: Do not index images on this page. If you don't specify this value, images on the page may be indexed and shown in search results.


Author
(Use Global / Default / Custom / Off)
The author of the content of a page. It can also be set in your Joomla articles.


Rights
(Use Global / Default / Custom / Off)
A meta element that can also be set in your Joomla Global Configuration and articles.


Generator
(Use Global / Default / Custom / Off)
A meta element that is used by Joomla by default on all HTML pages, RSS and ATOM Feeds. It is also the element that holds and displays the Joomla version in the case that you set the 'Joomla Version' to Show in your Global Configuration.
- Default: Use the Generator meta element as it is set by Joomla.
- Custom: Modify the content of the Generator to a custom value.
- Off: Remove the Generator from HTML pages, RSS and ATOM Feeds.


Viewport
(Use Global / Default / Custom / Off)
The browser's viewport is the area of the window in which web content can be seen. It is usually set by the Joomla template used.

A typical mobile-optimized site contains something like the following:
width=device-width, initial-scale=1


Charset
(Use Global / Default / Custom / Off)
The charset attribute specifies the character encoding for the HTML document. The HTML5 specification encourages web developers to use the UTF-8 character set, which covers almost all of the characters and symbols in the world.

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Assignment

Area
(Use Global / Site / Administrator / All)
Assign this item to an area of you site.


Part
Assign this item to a part of you site.

- All HTML Pages: Exclude Article Categories (All / Select / None)
Select whether you want this item to be excluded from the pages of articles within the categories of your choice. You can select more than one category.

- All HTML Pages: Exclude Contact Categories (All / Select / None)
Select whether you want this item to be excluded from the pages of contacts within the categories of your choice. You can select more than one category.

- All HTML Pages: Exclude Menu Items
Exclude this item from one or more menu items of the site.

- Menu Items
Assign this item to one or more menu items of your choice.

- Article IDs
Comma separated IDs of articles.

- Article Categories
Select one or more categories from the list.

- Contact Categories
Select one or more categories from the list.

- Components
Select one or more components from the detected list.

- Condition (Equals / Contains / Starts with / Ends with / Does not equal / Does not contain / Does not start with / Does not end with)
Compare the Relative URI string based on the given options.

- Condition: Equals: Apply this item on pages where the Relative URI is the same as the given string.
- Condition: Contains: Apply this item on pages where the Relative URI contains the given string.
- Condition: Starts with: Apply this item on pages where the Relative URI starts with the given string.
- Condition: Ends with: Apply this item on pages where the Relative URI ends with the given string.
- Condition: Does not equal: Apply this item on pages where the Relative URI is not the same as the given string.
- Condition: Does not contain: Apply this item on pages where the Relative URI does not contain the given string.
- Condition: Does not start with: Apply this item on pages where the Relative URI does not start with the given string.
- Condition: Does not end with: Apply this item on pages where the Relative URI does not end with the given string.

- Page Relative URI: String
The text string to be compared with the Relative URI of a page.

- Page Relative URI: Case Sensitive
Upper case and lower case text can be treated as distinct (case sensitive) or equivalent (case insensitive). Searches within electronic text can usually be sensitive to case or not, as required. When Case Sensitive is On the following example text cases will be considered as different: APP, App, app.

- Filter (Include / Exclude)
You can either include this element to the selected area or exclude it. If you Include it, it will appear only on that area and nowhere else. If you Exclude it, it will appear everywhere except the area you selected.

Standard Set Categories

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Items can be organized in categories.

Standard Options

Standard global options.

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General

Title Separator
(Default / Custom)
The character that separates the page title and the site name when the 'Site Name in Page Titles' option, in your Global Configuration, is set to 'After' or 'Before'. It defaults to a dash character, it cannot be blank.


Homepage Title
(Default / Site Name / Page Title)
The title of the page, when the page requested is at the Joomla webroot.
- Default: Do not change it.
- Site Name: Set the title on the homepage to the Site Name only.
- Page Title: Set the title on the homepage to the current page title.


Homepage Title (Feeds)
(Default / Site Name)
The title of the page, when the page requested is at the Joomla webroot and is an RSS or an ATOM Feed.
- Default: Do not change it.
- Site Name: Set the title on the Feed of the homepage to the Site Name only.


Offline Title
(Default / Site Name)
- Default: The title of the page as is, when the site is Offline. Note that pages do display their page title while the site is Offline.
- Site Name: Set the title on all HTML pages to be your Site Name only, when the site is offline.


Robots
(Default / Custom / Off)
The robots meta tag rule applies to search engine crawlers and lets you utilize a granular, page-specific approach to controlling how an individual page should be indexed and served to users in search results. You can set more than one comma separated values. Note that rules such as all or index,follow are the default values for search engines and have no effect if explicitly set.

noindex: Do not show this page, media, or resource in search results. If you don't specify this rule, the page, media, or resource may be indexed and shown in search results.

nofollow: Do not follow the links on this page. If you don't specify this rule, search engines may use the links on the page to discover those linked pages.

none: Equivalent to noindex,nofollow.

noarchive: Do not show a cached link in search results. If you don't specify this rule, search engines may generate a cached page and users may access it through the search results.

nosnippet: Do not show a text snippet or video preview in the search results for this page. A static image thumbnail (if available) may still be visible, when it results in a better user experience. If you don't specify this rule, search engines may generate a text snippet and video preview based on information found on the page.

indexifembedded: Search engines are allowed to index the content of a page if it's embedded in another page through iframes or similar HTML tags, in spite of a noindex rule. It only has an effect if it's accompanied by noindex.

notranslate: Don't offer translation of this page in search results. If you don't specify this rule, search engines may provide a translation of the title link and snippet of a search result for results that aren't in the language of the search query.

noimageindex: Do not index images on this page. If you don't specify this value, images on the page may be indexed and shown in search results.


Author
(Default / Custom / Off)
The author of the content of a page. It can also be set in your Joomla articles.


Rights
(Default / Custom / Off)
A meta element that can also be set in your Joomla Global Configuration and articles.


Generator
(Default / Custom / Off)
A meta element that is used by Joomla by default on all HTML pages, RSS and ATOM Feeds. It is also the element that holds and displays the Joomla version in the case that you set the 'Joomla Version' to Show in your Global Configuration.
- Default: Use the Generator meta element as it is set by Joomla.
- Custom: Modify the content of the Generator to a custom value.
- Off: Remove the Generator from HTML pages, RSS and ATOM Feeds.


Generator URI
(Default / Custom / Off)


Viewport
(Default / Custom / Off)
The browser's viewport is the area of the window in which web content can be seen. It is usually set by the Joomla template used.

A typical mobile-optimized site contains something like the following:
width=device-width, initial-scale=1


Charset
(Default / Custom / Off)
The charset attribute specifies the character encoding for the HTML document. The HTML5 specification encourages web developers to use the UTF-8 character set, which covers almost all of the characters and symbols in the world.

Twitter Cards

Create, manage, and add items to specific pages.

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New/Edit Twitter Card

Title
Set a title for the list in the backend. It will not be used in the generated HTML.

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General

Card
twitter:card
(Use Global / Normal / Large)
The Card Type.
Required.

The Summary Card with Large Image features a large, full-width prominent image alongside a tweet. It is designed to give the reader a rich photo experience, and clicking on the image brings the user to your website.

Used with all cards.


Title
twitter:title
(Use Global / Dynamic / Custom)
A concise title for the related content.
Maximum 70 characters.
Required.

- Platform specific behaviors:
- iOS, Android: Truncated to two lines in timeline and expanded Tweet
- Web: Truncated to one line in timeline and expanded Tweet

Used with Normal (summary), Large (summary_large_image), player cards.


Description
twitter:description
(Use Global / Dynamic / Custom / Off)
A description that concisely summarizes the content as appropriate for presentation within a Tweet. You should not re-use the title as the description or use this field to describe the general services provided by the website.
Maximum 200 characters.

- Platform specific behaviors:
- iOS, Android: Not displayed
- Web: Truncated to three lines in timeline and expanded Tweet

Used with Normal (summary), Large (summary_large_image), player cards.

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Users

Twitter Username
twitter:site
(Use Global / Custom / Off)
The Twitter username the card should be attributed to. Used in twitter:site element.


Twitter ID
twitter:site:id
(Use Global / Custom / Off)
The user's Twitter ID. Either twitter:site or twitter:site:id is required.

Used with Normal (summary), Large (summary_large_image), player cards.


Twitter Creator Username
twitter:creator
(Use Global / Custom / Off)
The Twitter username of content creator. Used with Large Card.


Twitter Creator ID
twitter:creator:id
(Use Global / Custom / Off)
Twitter user ID of content creator.

Used with Normal (summary), Large (summary_large_image) cards.

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Image

- Page Posts: A unique image representing the content of the page. You should not use a generic image such as your website logo, author photo, or other image that spans multiple pages. Images for this Card support an aspect ratio of 1:1 with minimum dimensions of 144x144 or maximum of 4096x4096 pixels. The image will be cropped to a square on all platforms.

- Player Posts: When Player is used, this will be the image to be displayed in place of the player on platforms that don't support iFrames or inline players. You should make this image the same dimensions as your player. Images with fewer than 68,600 pixels (a 262x262 square image, or a 350x196 16:9 image) will cause the player card not to render.

- Restrictions: Images must be less than 5MB in size. JPG, PNG, WEBP and GIF formats are supported. Only the first frame of an animated GIF will be used. SVG is not supported.


Image
twitter:image
(Use Global / On / Off)

- Select
(Use Global / Article Intro or Full Image / Article Intro Image / Article Full Image / Media / Absolute URL)


- Article Image Priority
(Use Global / Intro / Full)


- Media
(Use Global / Select)


- Secure URL
(Use Global / On / Off)


- Absolute URL
(Use Global / Custom)


- URI Versioning
(Use Global / On / Off)
Adding a version to the end of a URI (Uniform Resource Identifier), ensures that each client/bot/browser gets the latest version of the resource. The version number for Elements that you create is different than the one from the Global options. It is a timestamp of the last modified date of an Element, or the Global options accordingly.


Image Alt Text
twitter:image:alt
(Use Global / File Name / Article Intro Image Alt Text / Article Full Image Alt Text / Page Title / Meta Description / Custom / Off)
A text description of the image conveying the essential nature of an image to users who are visually impaired.
Maximum 420 characters.

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Player

Player
(Use Global / On / Off)
Video and audio clips have a special place on the Twitter platform thanks to the Player Card.

- Required:
Card twitter:card
Title twitter:title
Username twitter:site
Image twitter:image
Player Width twitter:player:width
Player Height twitter:player:height


- iFrame Absolute HTTPS URL
twitter:player
(Use Global / Custom)
HTTPS URL to iFrame player.

This must be a HTTPS URL which does not generate active mixed content warnings in a web browser. The audio or video player must not require plugins such as Adobe Flash.


- iFrame Width
twitter:player:width
(Use Global / Custom)
Width of iFrame specified in pixels.


- iFrame Height
twitter:player:height
(Use Global / Custom)
Height of iFrame specified in pixels.

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App

The App Card is a great way to represent mobile applications on Twitter and to drive installs. The App Card is designed to allow for a name, description and icon, and also to highlight attributes such as the rating and the price. This Card type is currently available on the twitter.com website, as well as iOS and Android mobile clients. It is not available on mobile web. The App Card is unique, as it uses each of the respective app stores (Apple iTunes, Google Play) to proxy the relevant Card data. If you specify the Card type, and each of the corresponding App IDs to the respective app stores, the system will proxy the rest (# of reviews, # of stars for the app, etc.). You also can optionally specify a more concise description of your app. When testing your App Card, make sure that the app is publicly available in an app store, otherwise Twitter will not be able to pull its information. The image for the App Card is also downloaded directly from the app store on which your app resides. To ensure your App Card works properly, the image uploaded to the iTunes/Google Play store must be less than 1MB in size.

- Note: Platform-specific URLs are deep links into your app. If you do not support a particular platform, omit tags for that platform. If you have an iPhone app, but no iPad-optimized app, you may want to include the iPhone app id, name, and url for both iPhone and iPad-related tags. If no value is provided, the Cards will simply render a 'View on web' link pointing to website of the card.

- Required:
Card twitter:card
Username twitter:site
iPhone ID twitter:app:id:iphone
iPad ID twitter:app:id:ipad
Google Play ID twitter:app:id:googleplay


- iPhone Name
twitter:app:name:iphone
(Use Global / Custom)
The name of your app.


- iPhone ID
twitter:app:id:iphone
(Use Global / Custom)
The numeric representation of your app ID in the App Store (i.e. 307234931)


- iPhone URL
twitter:app:url:iphone
(Use Global / Custom)
Your app's URL scheme (you must include :// after your scheme name).
Example: cannonball://poem/5149e249222f9e600a7540ef


- iPhone Country
twitter:app:country
(Use Global / Custom)
If your application is not available in the US App Store, you must set country for the App Store that contains your application. By default Twitter will search the US store, so if your app is in a different country, be sure to define it.


- iPad Name
twitter:app:name:ipad
(Use Global / Custom)
The name of your app.


- iPad ID
twitter:app:id:ipad
(Use Global / Custom)
The numeric representation of your app ID in the App Store (i.e. 307234931)


- iPad URL
twitter:app:url:ipad
(Use Global / Custom)
Your app's URL scheme (you must include :// after your scheme name).
Example: cannonball://poem/5149e249222f9e600a7540ef


- Google Play Name
twitter:app:name:googleplay
(Use Global / Custom)
The name of your app.


- Google Play ID
twitter:app:id:googleplay
(Use Global / Custom)
Your app ID in Google Play (i.e. io.fabric.samples.cannonball)


- Google Play URL
twitter:app:url:googleplay
(Use Global / Custom)
Your app's URL scheme.
Example: http://cannonball.fabric.io/poem/5149e249222f9e600a7540ef

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Assignment

Area
(Use Global / Site / Administrator / All)
Assign this item to an area of you site.


Part
Assign this item to a part of you site.

- All HTML Pages: Exclude Article Categories (All / Select / None)
Select whether you want this item to be excluded from the pages of articles within the categories of your choice. You can select more than one category.

- All HTML Pages: Exclude Contact Categories (All / Select / None)
Select whether you want this item to be excluded from the pages of contacts within the categories of your choice. You can select more than one category.

- All HTML Pages: Exclude Menu Items
Exclude this item from one or more menu items of the site.

- Menu Items
Assign this item to one or more menu items of your choice.

- Article IDs
Comma separated IDs of articles.

- Article Categories
Select one or more categories from the list.

- Contact Categories
Select one or more categories from the list.

- Components
Select one or more components from the detected list.

- Condition (Equals / Contains / Starts with / Ends with / Does not equal / Does not contain / Does not start with / Does not end with)br> Compare the Relative URI string based on the given options.

- Condition: Equals: Apply this item on pages where the Relative URI is the same as the given string.
- Condition: Contains: Apply this item on pages where the Relative URI contains the given string.
- Condition: Starts with: Apply this item on pages where the Relative URI starts with the given string.
- Condition: Ends with: Apply this item on pages where the Relative URI ends with the given string.
- Condition: Does not equal: Apply this item on pages where the Relative URI is not the same as the given string.
- Condition: Does not contain: Apply this item on pages where the Relative URI does not contain the given string.
- Condition: Does not start with: Apply this item on pages where the Relative URI does not start with the given string.
- Condition: Does not end with: Apply this item on pages where the Relative URI does not end with the given string.

- Page Relative URI: String
The text string to be compared with the Relative URI of a page.

- Page Relative URI: Case Sensitive
Upper case and lower case text can be treated as distinct (case sensitive) or equivalent (case insensitive). Searches within electronic text can usually be sensitive to case or not, as required. When Case Sensitive is On the following example text cases will be considered as different: APP, App, app.

- Filter (Include / Exclude)
You can either include this element to the selected area or exclude it. If you Include it, it will appear only on that area and nowhere else. If you Exclude it, it will appear everywhere except the area you selected.

Twitter Categories

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Items can be organized in categories.

Twitter Options

Global options for Twitter metadata that apply sitewide.

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Set Twitter meta elements dynamically on all HTML pages.
These settings will be overwritten by individual element items set on specific pages based on your element settings.

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General

Enabled Globally
(On / Off)


Area:
(Site / Administrator / All)
Select the area for the Twittercards.


Card
twitter:card
(Normal / Large)
The Card Type.
Required.

The Summary Card with Large Image features a large, full-width prominent image alongside a tweet. It is designed to give the reader a rich photo experience, and clicking on the image brings the user to your website.

Used with all cards.


Title
twitter:title
(Dynamic / Custom)
A concise title for the related content.
Maximum 70 characters.
Required.

- Platform specific behaviors:
- iOS, Android: Truncated to two lines in timeline and expanded Tweet
- Web: Truncated to one line in timeline and expanded Tweet

Used with Normal (summary), Large (summary_large_image), player cards.


Description
twitter:description
(Dynamic / Custom)
A description that concisely summarizes the content as appropriate for presentation within a Tweet. You should not re-use the title as the description or use this field to describe the general services provided by the website.
Maximum 200 characters.

- Platform specific behaviors:
- iOS, Android: Not displayed
- Web: Truncated to three lines in timeline and expanded Tweet

Used with Normal (summary), Large (summary_large_image), player cards.

---

Users

Twitter Username
twitter:site
The Twitter username the card should be attributed to. Used in twitter:site element.


Twitter ID
twitter:site:id
The user's Twitter ID. Either twitter:site or twitter:site:id is required.

Used with Normal (summary), Large (summary_large_image), player cards.


Twitter Creator Username
twitter:creator
The Twitter username of content creator. Used with Large Card.


Twitter Creator ID
twitter:creator:id
Twitter user ID of content creator.

Used with Normal (summary), Large (summary_large_image) cards.

---

Image

Page Posts: A unique image representing the content of the page. You should not use a generic image such as your website logo, author photo, or other image that spans multiple pages. Images for this Card support an aspect ratio of 1:1 with minimum dimensions of 144x144 or maximum of 4096x4096 pixels. The image will be cropped to a square on all platforms.

Player Posts: When Player is used, this will be the image to be displayed in place of the player on platforms that don't support iFrames or inline players. You should make this image the same dimensions as your player. Images with fewer than 68,600 pixels (a 262x262 square image, or a 350x196 16:9 image) will cause the player card not to render.

Restrictions: Images must be less than 5MB in size. JPG, PNG, WEBP and GIF formats are supported. Only the first frame of an animated GIF will be used. SVG is not supported.


Image
twitter:image
(On / Off)


Image: Select
(Article Intro or Full Image / Article Intro Image / Article Full Image / Media / Absolute URL)


Image: Article Image Priority
(Intro / Full)


Image: Media


Image: Secure URL
(On / Off)


Image: Absolute URL


Image: URI Versioning
(On / Off)
Adding a version to the end of a URI (Uniform Resource Identifier), ensures that each client/bot/browser gets the latest version of the resource. The version number for Elements that you create is different than the one from the Global options. It is a timestamp of the last modified date of an Element, or the Global options accordingly.


Image: Image Alt Text
twitter:image:alt
(File Name / Article Intro Image Alt Text / Article Full Image Alt Text / Page Title / Meta Description / Custom / Off)

---

Player

Player
(On / Off)
Video and audio clips have a special place on the Twitter platform thanks to the Player Card.

- Required:
Card twitter:card
Title twitter:title
Username twitter:site
Image twitter:image
Player Width twitter:player:width
Player Height twitter:player:height


- iFrame Absolute HTTPS URL
twitter:player
HTTPS URL to iFrame player.

This must be a HTTPS URL which does not generate active mixed content warnings in a web browser. The audio or video player must not require plugins such as Adobe Flash.


- iFrame Width
twitter:player:width
Width of iFrame specified in pixels.


- iFrame Height
twitter:player:height
Height of iFrame specified in pixels.

---

App

The App Card is a great way to represent mobile applications on Twitter and to drive installs. The App Card is designed to allow for a name, description and icon, and also to highlight attributes such as the rating and the price. This Card type is currently available on the twitter.com website, as well as iOS and Android mobile clients. It is not available on mobile web. The App Card is unique, as it uses each of the respective app stores (Apple iTunes, Google Play) to proxy the relevant Card data. If you specify the Card type, and each of the corresponding App IDs to the respective app stores, the system will proxy the rest (# of reviews, # of stars for the app, etc.). You also can optionally specify a more concise description of your app. When testing your App Card, make sure that the app is publicly available in an app store, otherwise Twitter will not be able to pull its information. The image for the App Card is also downloaded directly from the app store on which your app resides. To ensure your App Card works properly, the image uploaded to the iTunes/Google Play store must be less than 1MB in size.

- Note:
Platform-specific URLs are deep links into your app. If you do not support a particular platform, omit tags for that platform. If you have an iPhone app, but no iPad-optimized app, you may want to include the iPhone app id, name, and url for both iPhone and iPad-related tags. If no value is provided, the Cards will simply render a 'View on web' link pointing to website of the card.

- Required:
Card twitter:card
Username twitter:site
iPhone ID twitter:app:id:iphone
iPad ID twitter:app:id:ipad
Google Play ID twitter:app:id:googleplay


- iPhone Name
twitter:app:name:iphone
The name of your app.


- iPhone ID
twitter:app:id:iphone
The numeric representation of your app ID in the App Store (i.e. 307234931)


- iPhone URL
twitter:app:url:iphone
Your app's URL scheme (you must include :// after your scheme name).
Example: cannonball://poem/5149e249222f9e600a7540ef


- iPhone Country
twitter:app:country
If your application is not available in the US App Store, you must set country for the App Store that contains your application. By default Twitter will search the US store, so if your app is in a different country, be sure to define it.


- iPad Name
twitter:app:name:ipad
The name of your app.


- iPad ID
twitter:app:id:ipad
The numeric representation of your app ID in the App Store (i.e. 307234931)


- iPad URL
twitter:app:url:ipad
Your app's URL scheme (you must include :// after your scheme name).
Example: cannonball://poem/5149e249222f9e600a7540ef


- Google Play Name
twitter:app:name:googleplay
The name of your app.


- Google Play ID
twitter:app:id:googleplay
Your app ID in Google Play (i.e. io.fabric.samples.cannonball)


- Google Play URL
twitter:app:url:googleplay
Your app's URL scheme.
Example: http://cannonball.fabric.io/poem/5149e249222f9e600a7540ef

---

Access

View Access Levels
(All / Guests / User Groups)
While in most cases metadata are set for search engine optimization, search engine bots will always appear as guests (Guest User Group). Setting this to Guests will make sure the metadata are not set on your pages for logged in users.
If you consider you need to specify User Groups then you can do it here.

Note: Anything set to the Public user group is visible from both logged-in and not logged-in users.

Open Graph Elements

Create, manage, and add items to specific pages.

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New/Edit Open Graph Element

Title
Set a title for the list in the backend. It will not be used in the generated HTML.


Property
Select a property from the list, for the meta element.
- Site Name:
If your object is part of a larger web site, the name which should be displayed for the overall site. e.g., IMDb.
- Title:
The title of your object (the page) as it should appear within the graph, e.g., The Rock.
- Description:
A one to two sentence description of your object.
- URL:
The canonical URL of your object that will be used as its permanent ID in the graph, e.g., http://www.imdb.com/title/tt0117500/
- Type:
The type of your object, e.g., video.movie. Depending on the type you specify, other properties may also be required.
- Locale:
The locale these tags are marked up in. Of the format language_TERRITORY. Default is en_US.
- Image:
An image URL which should represent your object within the graph.
- Determiner:
The word that appears before this object's title in a sentence. An enum of (auto, a, an, the, ''). If auto is chosen, the consumer of your data should chose between a or an. Default is '' (blank).
- Facebook App ID:
The Facebook ID of your application.
- Facebook Admins:
An array of the Facebook IDs of the app's administrators.


Content
Set the Content for this Open Graph Property.
- Dynamic:
When this option appears, set the content for this meta element dynamically for every page it is set on.
- Canonical:
When this option appears (i.e, if the property is URL), it will use the Canonical URL dynamically based on your global Canonical URLs preferences.
- Custom:
Set a custom entry as the content of the meta element.
- List:
When this option appears (i.e, if the property is Type), you can select an option from the list (dropdown menu) to be used as the content of the meta element.


Property: URL, Content: Dynamic
- Lower Case (On / Off)
Make sure the Canonical URL is always lower case. Letter case (or just case) is the distinction between the letters that are in larger upper case (also uppercase, capital letters, capitals, caps, large letters, or more formally majuscule) and smaller lower case (also lowercase, small letters, or more formally minuscule) in the written representation of certain languages.
- Trailing Slash (With / Without)
A trailing slash is the forward slash placed at the end of a URL. The usual Joomla behavior is to allow both to be used on pages. Here you can set which one you prefer as the canonical. Note: If your Joomla is installed in a subdirectory and that subdirectory is used in your URLs, then the webroot (homepage) URL will always have a trailing slash marking that it is a directory.
- Query String (Remove / Ignore)
A query string is the part of a uniform resource locator (URL) containing data that do not fit conveniently into a hierarchical path structure. The query string commonly includes fields added to a base URL by a Web browser or other client application.
Example: ?color=blue&cur=eur
A canonical URL should not contain query strings because they usually point to the same page (i.e, a product page).


Property: Type (List / Custom)
- List
Select an option from the list.
Activity
Actor
Album
Article
Athlete
Author
Band
Bar
Blog
Book
Cafe
Cause
City
Company
Country
Director
Drink
Food
Game
Government
Hotel
Landmark
Movie
Musician
Non Profit
Politician
Product
Public Figure
Restaurant
School
Song
Sport
Sports League
Sports Team
State Province
Tv Show
University
Website


Property: Locale: Locale Alternates (Auto / Off)
- Auto:
On a multilingual website, the language code of each enabled language will be used as an Open Graph meta element dynamically.
- Off:
Do not use Local Alternates.


Property: Image
(Media / Absolute URLs / Directory / Paths / Joomla Custom Fields (Media))
- Media:
Select an image file using the media field. The root directory/folder of this area of files is controlled by your Joomla Media manager (Default: /images/).
- Article Intro Image:
Dynamically detect images set in your article Intro Image fields.
- Article Full Image:
Dynamically detect images set in your article Full Article Image fields.
- Absolute URLs:
Set the URLs manually for secure and/or non-secure URLs. The ones you leave blank will not be used.
- Directory:
Select the directory/folder that contains the image files using the menu. The directory will be scanned for images. The root directory/folder of this area of files is controlled by your Joomla Media manager (Default: /images/).
- Paths:
Set paths pointing to a directory/folder that contains the image files to be scanned for images. The paths must be relative to your Joomla web root (your installation directory).
- Joomla Custom Fields (Media):
Dynamically detect your Joomla Custom Fields set to be 'media' and assigned to your articles, contacts, etc. For example, on a page that contains an article that has one or more media custom fields assigned, then those images will be automatically set as metadata elements on that page.


Property: Image: Media
Select an image file using the media field. The root directory/folder of this area of files is controlled by your Joomla Media manager (Default: /images/).


Property: Image: Directory
The directory with the image files to be scanned. The root directory/folder of this area of files is controlled by your Joomla Media manager (Default: /images/).


Property: Image: Paths
You can set one or more paths (one per line) pointing to the directory that contains the image files to be scanned. The paths must be relative to your Joomla web root (your installation directory).


Property: Image: Include Subdirectories
When turned on, then all directories/folders at a deeper level than the one currently selected will also be included in the scan.


Property: Image: Max Images
Set the maximum number of images to be used as metadata elements.


Property: Image: URLs
- Auto:
Automatically detect the page scheme. On an https (secure) page, secure URLs will be set. On an http (non-secure) page, only the basic meta element will be set with a non-secure URL.
- Secure on All Tags:
Set secure URLs on all meta elements.
- Non-Secure, alongside Secure:
Set non-secure http scheme on the basic meta elements, as well as set secure https scheme on the secure meta element.
- Non-Secure Only
Set only the basic meta element with http (non-secure) URL.


Property: Image: URI Versioning
(On/Off)
Adding a version to the end of a URI (Uniform Resource Identifier), ensures that each client/bot/browser gets the latest version of the resource. The version number for Elements that you create is different than the one from the Global options. It is a timestamp of the last modified date of an Element, or the Global options accordingly.


Property: Image: Image Info
- Auto:
Dynamically detect the MIME Type, Width and the Height of an image and add the appropriate meta elements.
- Custom:
Set the MIME Type, Width and the Height of an image manually.
- Off:
Do not set any information about the image.


Property: Image: Image Info: Custom
- MIME Type:
JPEG/PNG
- Width
Set the Width of the image in pixels. Use an integer.
- Height
Set the Height of the image in pixels. Use an integer.


Property: Image: Image Alt
A description of what is in the image (not a caption). If the page specifies an Open Graph Image it should specify an Open Graph Image Alt. Select one of the options from the menu to use as Alt for the image.
(File Name / Page Title / Meta Description / Custom / Off)


Property: Image: Global Images
(Include / Exclude)
Allow to include or not any images set or automatically generated based on your Global settings, to be used on the same page.


Property: Determiner
(Auto / A / An / The)
This is the word that appears before the object's title in a sentence. If Auto is selected, the consumer of the object will chose between A or An.


Property: Facebook App ID
Set the Facebook ID for your application. The Facebook App ID property lets Facebook know the identity of your site, which provides additional benefits like social analytics, comments moderation and authentication capabilities to your site.
Note: It cannot be used multiple times on the same page.


Property: Facebook Admins
Set the ID(s) of the Facebook admins for your application. Use a comma to separate multiple IDs. Each one will have it's own separate meta element automatically.


Area
Assign this item to an area of you site.
- All HTML Pages: Exclude Article Categories (All / Select / None)
Select whether you want this meta element to be excluded from the pages of articles within the categories of your choice. You can select more than one category.
- All HTML Pages: Exclude Contact Categories (All / Select / None)
Select whether you want this meta element to be excluded from the pages of contacts within the categories of your choice. You can select more than one category.
- All HTML Pages: Exclude Menu Items
You can exclude this meta element from one or more menu items of your site.
- Menu Items
Assign this item to one or more menu items of your choice.
- Article IDs
Comma separated IDs of articles.
- Article Categories
Select one or more categories from the list of article categories.
- Contact Categories
Select one or more categories from the list of contact categories.
- Components
Select one or more components from the detected list.
- Condition (Equals / Contains / Starts with / Ends with / Does not equal / Does not contain / Does not start with / Does not end with)
Compare the Relative URI string based on the given options.

- Condition: Equals: Apply this item on pages where the Relative URI is the same as the given string.
- Condition: Contains: Apply this item on pages where the Relative URI contains the given string.
- Condition: Starts with: Apply this item on pages where the Relative URI starts with the given string.
- Condition: Ends with: Apply this item on pages where the Relative URI ends with the given string.
- Condition: Does not equal: Apply this item on pages where the Relative URI is not the same as the given string.
- Condition: Does not contain: Apply this item on pages where the Relative URI does not contain the given string.
- Condition: Does not start with: Apply this item on pages where the Relative URI does not start with the given string.
- Condition: Does not end with: Apply this item on pages where the Relative URI does not end with the given string.

- Page Relative URI: String
The text string to be compared with the Relative URI of a page.
- Page Relative URI: Case Sensitive
Upper case and lower case text can be treated as distinct (case sensitive) or equivalent (case insensitive). Searches within electronic text can usually be sensitive to case or not, as required. When Case Sensitive is On the following example text cases will be considered as different: APP, App, app.
- Filter (Include / Exclude)
You can either include this meta element to the selected area or exclude it. If you Include it, it will appear only on that area and nowhere else. If you Exclude it, it will appear everywhere except the area you selected.

Open Graph Categories

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Items can be organized in categories.

Open Graph Options

Global options for Open Graph metadata that apply sitewide.

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Set Open Graph meta elements dynamically on all HTML pages.
These settings will be overwritten by individual element items set on specific pages based on your element settings.


Site Name
(On/Off)
Set the Open Graph Site Name meta element dynamically on all HTML pages.


Title
(On/Off)
Set the Open Graph Title meta element dynamically on all HTML pages.


Description
(On/Off)
Set the Open Graph Description meta element dynamically on all HTML pages.


URL
(Dynamic / Canonical / Off)
Set the Open Graph URL meta element dynamically on all HTML pages.
URL: Dynamic
Set the URL on all HTML pages dynamically, with options.
- Lower Case (On / Off)
Make sure the Canonical URL is always lower case. Letter case (or just case) is the distinction between the letters that are in larger upper case (also uppercase, capital letters, capitals, caps, large letters, or more formally majuscule) and smaller lower case (also lowercase, small letters, or more formally minuscule) in the written representation of certain languages.
- Trailing Slash (With / Without)
A trailing slash is the forward slash placed at the end of a URL. The usual Joomla behavior is to allow both to be used on pages. Here you can set which one you prefer as the canonical. Note: If your Joomla is installed in a subdirectory and that subdirectory is used in your URLs, then the webroot (homepage) URL will always have a trailing slash marking that it is a directory.
- Query String (Remove / Ignore)
A query string is the part of a uniform resource locator (URL) containing data that do not fit conveniently into a hierarchical path structure. The query string commonly includes fields added to a base URL by a Web browser or other client application.
Example: ?color=blue&cur=eur
A canonical URL should not contain query strings because they usually point to the same page (i.e, a product page).


Type
(List / Custom / Off)
Set the Open Graph Type meta element on all HTML pages.
Select an option from the list.
Activity
Actor
Album
Article
Athlete
Author
Band
Bar
Blog
Book
Cafe
Cause
City
Company
Country
Director
Drink
Food
Game
Government
Hotel
Landmark
Movie
Musician
Non Profit
Politician
Product
Public Figure
Restaurant
School
Song
Sport
Sports League
Sports Team
State Province
Tv Show
University
Website


Locale
(On/Off)
Set the Open Graph Locale meta element dynamically on all HTML pages.


Locale Alternates
- Auto:
On a multilingual website, the language code of each enabled language will be used as an Open Graph meta element dynamically.
- Off:
Do not use Local Alternates.


Image
(Media / Absolute URLs / Directory / Paths / Joomla Custom Fields (Media))
- Media:
Select an image file using the media field. The root directory/folder of this area of files is controlled by your Joomla Media manager (Default: /images/).
- Article Intro Image:
Dynamically detect images set in your article Intro Image fields.
- Article Full Image:
Dynamically detect images set in your article Full Article Image fields.
- Absolute URLs:
- Absolute URLs:
Set the URLs manually for secure and/or non-secure URLs. The ones you leave blank will not be used.
- Directory:
Select the directory/folder that contains the image files using the menu. The directory will be scanned for images. The root directory/folder of this area of files is controlled by your Joomla Media manager (Default: /images/).
- Paths:
Set paths pointing to a directory/folder that contains the image files to be scanned for images. The paths must be relative to your Joomla web root (your installation directory).
- Joomla Custom Fields (Media):
Dynamically detect your Joomla Custom Fields set to be 'media' and assigned to your articles, contacts, etc. For example, on a page that contains an article that has one or more media custom fields assigned, then those images will be automatically set as metadata elements on that page.


Image: Media
Select an image file using the media field. The root directory/folder of this area of files is controlled by your Joomla Media manager (Default: /images/).


Image: Directory
The directory with the image files to be scanned. The root directory/folder of this area of files is controlled by your Joomla Media manager (Default: /images/).


Image: Paths
You can set one or more paths (one per line) pointing to the directory that contains the image files to be scanned. The paths must be relative to your Joomla web root (your installation directory).


Image: Include Subdirectories
When turned on, then all directories/folders at a deeper level than the one currently selected will also be included in the scan.


Image: Max Images
Set the maximum number of images to be used as metadata elements.


Image: URLs
- Auto:
Automatically detect the page scheme. On an https (secure) page, secure URLs will be set. On an http (non-secure) page, only the basic meta element will be set with a non-secure URL.
- Secure on All Tags:
Set secure URLs on all meta elements.
- Non-Secure, alongside Secure:
Set non-secure http scheme on the basic meta elements, as well as set secure https scheme on the secure meta element.
- Non-Secure Only
Set only the basic meta element with http (non-secure) URL.


Image: URI Versioning
(On/Off)
Adding a version to the end of a URI (Uniform Resource Identifier), ensures that each client/bot/browser gets the latest version of the resource. The version number for Elements that you create is different than the one from the Global options. It is a timestamp of the last modified date of an Element, or the Global options accordingly.


Image: Image Info
- Auto:
Dynamically detect the MIME Type, Width and the Height of an image and add the appropriate meta elements.
- Custom:
Set the MIME Type, Width and the Height of an image manually.
- Off:
Do not set any information about the image.


Image: Image Info: Custom
- MIME Type:
JPEG/PNG
- Width
Set the Width of the image in pixels. Use an integer.
- Height
Set the Height of the image in pixels. Use an integer.


Image: Image Alt
A description of what is in the image (not a caption). If the page specifies an Open Graph Image it should specify an Open Graph Image Alt. Select one of the options from the menu to use as Alt for the image.
(File Name / Page Title / Meta Description / Custom / Off)


Determiner
(On/Off)
Set the Open Graph Determiner meta element on all HTML pages.
(Auto / A / An / The)
This is the word that appears before the object's title in a sentence. If Auto is selected, the consumer of the object will chose between A or An.


Facebook App ID
(On/Off)
Set the Facebook ID for your application on all HTML pages.
Set the Facebook ID for your application. The Facebook App ID property lets Facebook know the identity of your site, which provides additional benefits like social analytics, comments moderation and authentication capabilities to your site.
Note: It cannot be used multiple times on the same page.


Facebook Admins
(On/Off)
Set the Facebook admins for your application on all HTML pages.
Set the ID(s) of the Facebook admins for your application. Use a comma to separate multiple IDs. Each one will have it's own separate meta element automatically.


View Access Levels
(All / Guests / User Groups)
In most cases Open Graph metadata are set for search engine optimization, search engines will always appear as guests (Guest User Group). Setting this to Guests will make sure the Open Graph metadata are not set on your pages for logged in users. If you consider you need to specify User Groups then you can do it here. Note: Anything set to the Public user group is visible from both logged-in and not logged-in users.

Highwire Press Sets

Create, manage, and add items to specific pages.

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New/Edit Highwire Press Set

Title
Set a title for the list in the backend. It will not be used in the generated HTML.

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General

- Google Scholar Indexing Guidelines.
Google Scholar uses automated software, known as 'parsers', to identify bibliographic data of your papers, as well as references between the papers. Incorrect identification of bibliographic data or references will lead to poor indexing of your site. Some documents may not be included at all, some may be included with incorrect author names or titles, and some may rank lower in the search results, because their (incorrect) bibliographic data would not match (correct) references to them from other papers. To avoid such problems, you need to provide bibliographic data and references in a way that automated 'parser' software can process.

- Required:
For Google Scholar, you need to provide at least three fields: (1) the title of the article, (2) the full name of at least the first author, and (3) the year of publication. Pages that don't provide any one of these three fields will be processed as if they had no meta tags at all. Likewise, all PDF files will be processed as if they had no meta tags at all, unless they're linked from the corresponding HTML abstracts using PDF URL tag. It works best to provide the meta-tags for all versions of your paper, not just for one of the versions.


Title
citation_title
(Dynamic / Custom / Off)
The Title tag must contain the title of the paper. Don't use it for the title of the journal or a book in which the paper was published, or for the name of your repository.
Required for inclusion in Google Scholar.


Inbook Title
citation_inbook_title
(Dynamic / Custom / Off)


Publisher
citation_publisher


Language
citation_language
(Select / Custom / Off)


Keywords
citation_keywords
(Dynamic / Custom / Off)

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Authors

Author
citation_author
The Author tag must contain the authors (and only the actual authors) of the paper. Don't use it for the author of the website or for contributors other than authors, e.g., thesis advisors. Author names can be listed either as 'Smith, John' or as 'John Smith'. Put each author name in a separate tag and omit all affiliations, degrees, certifications, etc., from this field.
At least one author tag is required for inclusion in Google Scholar.

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URLs

PDF URL
citation_pdf_url
The meta tags normally apply only to the exact page on which they're provided. If this page shows only the abstract of the paper and you have the full text in a separate file, e.g., in the PDF format, please specify the locations of all full text versions using PDF URL tag. The content of the tag is the absolute URL of the PDF file; for security reasons, it must refer to a file in the same subdirectory as the HTML abstract. Failure to link the alternate versions together could result in the incorrect indexing of the PDF files, because these files would be processed as separate documents without the information contained in the meta tags.


Springer API URL
citation_springer_api_url


Abstract HTML URL
citation_abstract_html_url
(Dynamic / Canonical / Custom / Off)
- Dynamic: Use the page URL dynamically.
- Canonical: Use the Canonical URL of the page.
- Custom: Use a custom URL.
- Off: Do not use.


Lower Case
(On / Off)
Set the URL to lower case.

Letter case (or just case) is the distinction between the letters that are in larger upper case (also uppercase, capital letters, capitals, caps, large letters, or more formally majuscule) and smaller lower case (also lowercase, small letters, or more formally minuscule) in the written representation of certain languages.


Trailing Slash
(With / Without)
A trailing slash is the forward slash placed at the end of a URL. The usual Joomla behavior is to allow both to be used on pages. Here you can set which one you prefer as the canonical.

- Note: If your Joomla is installed in a subdirectory and that subdirectory is used in your URLs, then the webroot (homepage) URL will always have a trailing slash marking that it is a directory.


Query String
(Remove / Ignore)
A query string is the part of a uniform resource locator (URL) containing data that do not fit conveniently into a hierarchical path structure. The query string commonly includes fields added to a base URL by a Web browser or other client application.

- Example: ?color=blue&cur=eur

A canonical URL should not contain query strings because they usually point to the same page (i.e, a product page).


Full Text HTML URL
citation_fulltext_html_url
(Dynamic / Canonical / Custom / Off)
- Dynamic: Use the page URL dynamically.
- Canonical: Use the Canonical URL of the page.
- Custom: Use a custom URL.
- Off: Do not use.


Lower Case
(On / Off)
Set the URL to lower case.

Letter case (or just case) is the distinction between the letters that are in larger upper case (also uppercase, capital letters, capitals, caps, large letters, or more formally majuscule) and smaller lower case (also lowercase, small letters, or more formally minuscule) in the written representation of certain languages.


Trailing Slash
(With / Without)
A trailing slash is the forward slash placed at the end of a URL. The usual Joomla behavior is to allow both to be used on pages. Here you can set which one you prefer as the canonical.

- Note: If your Joomla is installed in a subdirectory and that subdirectory is used in your URLs, then the webroot (homepage) URL will always have a trailing slash marking that it is a directory.


Query String
(Remove / Ignore)
A query string is the part of a uniform resource locator (URL) containing data that do not fit conveniently into a hierarchical path structure. The query string commonly includes fields added to a base URL by a Web browser or other client application.

- Example: ?color=blue&cur=eur

A canonical URL should not contain query strings because they usually point to the same page (i.e, a product page).

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Dates

Date
citation_date
(Calendar / Custom / Off)


Publication Date
citation_publication_date
(Calendar / Custom / Off)
The Publication Date tag must contain the date of publication, i.e., the date that would normally be cited in references to this paper from other papers. Don't use it for the date of entry into the repository - that should go into Online Date instead. Provide full date in the YYYY/MM/DD (2010/5/12) format if available; or a year alone otherwise.
Required for inclusion in Google Scholar.


Online Date
citation_online_date
(Calendar / Custom / Off)
The date of entry into the repository. Not the date that is has been cited in references to this paper from other papers. Provide full date in the YYYY/MM/DD (2010/5/12) format if available; or a year alone otherwise, for inclusion in Google Scholar.

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Journal & Conference

For Journal and Conference papers, provide the bibliographic citation data for inclusion in Google Scholar.


Journal Title
citation_journal_title
(Dynamic / Custom / Off)
Provide the bibliographic citation data for inclusion in Google Scholar.


Conference Title
citation_conference_title
Provide the bibliographic citation data for inclusion in Google Scholar.


Conference Series ID
citation_conference_series_id


Conference Sequence Number
citation_conference_sequence_num


Conference Abbrev
citation_conference_abbrev


ISSN
citation_issn
International Standard Serial Number.
Provide the bibliographic citation data for inclusion in Google Scholar.


ISBN
citation_isbn
International Standard Book Number.
Provide the bibliographic citation data for inclusion in Google Scholar.


Volume
citation_volume
Provide the bibliographic citation data for inclusion in Google Scholar.


Issue
citation_issue
Provide the bibliographic citation data for inclusion in Google Scholar.


First Page
citation_firstpage
Provide the bibliographic citation data for inclusion in Google Scholar.


Last Page
citation_lastpage
Provide the bibliographic citation data for inclusion in Google Scholar.

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Miscellaneous

Dissertation Institution
citation_dissertation_institution
For theses, dissertations, and technical reports, provide the bibliographic citation data for inclusion in Google Scholar.


Technical Report Institution
citation_technical_report_institution
For theses, dissertations, and technical reports, provide the bibliographic citation data for inclusion in Google Scholar.


Technical Report Number
citation_technical_report_number
For theses, dissertations, and technical reports, provide the bibliographic citation data for inclusion in Google Scholar.


DOI
citation_doi

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Assignment

Area
(Use Global / Site / Administrator / All)
Assign this item to an area of you site.


Part
Assign this item to a part of you site.

- All HTML Pages: Exclude Article Categories (All / Select / None)
Select whether you want this item to be excluded from the pages of articles within the categories of your choice. You can select more than one category.

- All HTML Pages: Exclude Contact Categories (All / Select / None)
Select whether you want this item to be excluded from the pages of contacts within the categories of your choice. You can select more than one category.

- All HTML Pages: Exclude Menu Items
Exclude this item from one or more menu items of the site.

- Menu Items
Assign this item to one or more menu items of your choice.

- Article IDs
Comma separated IDs of articles.

- Article Categories
Select one or more categories from the list.

- Contact Categories
Select one or more categories from the list.

- 3rd Party Components
Select one or more components from the list of components that are detected to be installed on your site. Core Joomla components are not on this list.

- Condition (Equals / Contains / Starts with / Ends with / Does not equal / Does not contain / Does not start with / Does not end with)
Compare the Relative URI string based on the given options.

- Condition: Equals: Apply this item on pages where the Relative URI is the same as the given string.
- Condition: Contains: Apply this item on pages where the Relative URI contains the given string.
- Condition: Starts with: Apply this item on pages where the Relative URI starts with the given string.
- Condition: Ends with: Apply this item on pages where the Relative URI ends with the given string.
- Condition: Does not equal: Apply this item on pages where the Relative URI is not the same as the given string.
- Condition: Does not contain: Apply this item on pages where the Relative URI does not contain the given string.
- Condition: Does not start with: Apply this item on pages where the Relative URI does not start with the given string.
- Condition: Does not end with: Apply this item on pages where the Relative URI does not end with the given string.

- Page Relative URI: String
The text string to be compared with the Relative URI of a page.

- Page Relative URI: Case Sensitive
Upper case and lower case text can be treated as distinct (case sensitive) or equivalent (case insensitive). Searches within electronic text can usually be sensitive to case or not, as required. When Case Sensitive is On the following example text cases will be considered as different: APP, App, app.

- Filter (Include / Exclude)
You can either include this element to the selected area or exclude it. If you Include it, it will appear only on that area and nowhere else. If you Exclude it, it will appear everywhere except the area you selected.

Highwire Press Categories

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Items can be organized in categories.

Highwire Press Options

Highwire Press global options.

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Enabled Globally
(On / Off)


Area:
(Site / Administrator / All)
Select the area for the Highwire Press.

Canonical Elements

Create, manage, and add items to specific pages.

---

New/Edit Canonical Element

Title
Set a title for the list in the backend. It will not be used in the generated HTML.


URL
- Dynamic:
Set the Canonical URL for this meta element dynamically for every page it is set on, with options.
- Canonical:
Set the Canonical URL for this meta element dynamically for every page it is set on, using the settings of your global Canonical URLs preferences.
- Custom:
Set a custom entry for this meta element.


URL: Dynamic
- Lower Case (On / Off)
Make sure the Canonical URL is always lower case. Letter case (or just case) is the distinction between the letters that are in larger upper case (also uppercase, capital letters, capitals, caps, large letters, or more formally majuscule) and smaller lower case (also lowercase, small letters, or more formally minuscule) in the written representation of certain languages.
- Trailing Slash (With / Without)
A trailing slash is the forward slash placed at the end of a URL. The usual Joomla behavior is to allow both to be used on pages. Here you can set which one you prefer as the canonical. Note: If your Joomla is installed in a subdirectory and that subdirectory is used in your URLs, then the webroot (homepage) URL will always have a trailing slash marking that it is a directory.
- Query String (Remove / Ignore)
A query string is the part of a uniform resource locator (URL) containing data that do not fit conveniently into a hierarchical path structure. The query string commonly includes fields added to a base URL by a Web browser or other client application.
Example: ?color=blue&cur=eur
A canonical URL should not contain query strings because they usually point to the same page (i.e, a product page).


Area
Assign this item to an area of you site.
- All HTML Pages: Exclude Article Categories (All / Select / None)
Select whether you want this meta element to be excluded from the pages of articles within the categories of your choice. You can select more than one category.
- All HTML Pages: Exclude Contact Categories (All / Select / None)
Select whether you want this meta element to be excluded from the pages of contacts within the categories of your choice. You can select more than one category.
- All HTML Pages: Exclude Menu Items
You can exclude this meta element from one or more menu items of your site.
- Menu Items
Assign this item to one or more menu items of your choice.
- Article IDs
Comma separated IDs of articles.
- Article Categories
Select one or more categories from the list of article categories.
- Contact Categories
Select one or more categories from the list of contact categories.
- 3rd Party Components
Select one or more components from the list of components that are detected to be installed on your site. Core Joomla components are not on this list.
- Condition (Equals / Contains / Starts with / Ends with / Does not equal / Does not contain / Does not start with / Does not end with)
Compare the Relative URI string based on the given options.

- Condition: Equals: Apply this item on pages where the Relative URI is the same as the given string.
- Condition: Contains: Apply this item on pages where the Relative URI contains the given string.
- Condition: Starts with: Apply this item on pages where the Relative URI starts with the given string.
- Condition: Ends with: Apply this item on pages where the Relative URI ends with the given string.
- Condition: Does not equal: Apply this item on pages where the Relative URI is not the same as the given string.
- Condition: Does not contain: Apply this item on pages where the Relative URI does not contain the given string.
- Condition: Does not start with: Apply this item on pages where the Relative URI does not start with the given string.
- Condition: Does not end with: Apply this item on pages where the Relative URI does not end with the given string.

- Page Relative URI: String
The text string to be compared with the Relative URI of a page.
- Page Relative URI: Case Sensitive
Upper case and lower case text can be treated as distinct (case sensitive) or equivalent (case insensitive). Searches within electronic text can usually be sensitive to case or not, as required. When Case Sensitive is On the following example text cases will be considered as different: APP, App, app.
- Filter (Include / Exclude)
You can either include this meta element to the selected area or exclude it. If you Include it, it will appear only on that area and nowhere else. If you Exclude it, it will appear everywhere except the area you selected.

Canonical Categories

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Items can be organized in categories.

Hreflang Elements

Create, manage, and add items to specific pages.

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New/Edit Hreflang Element

Title
Set a title for the list in the backend. It will not be used in the generated HTML.


Language Code
(x-default / Custom) Set the value of the hreflang attribute.
- x-default: Use x-default.
- Custom: Make sure that it identifies the language (in ISO 639-1 format) and optionally the region (in ISO 3166-1 Alpha 2 format). Specifying the region alone is not valid.
Examples:
el
en
en-gb
en-us

https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes
https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2


Absolute Domain (FQDN)
(Global / Auto / Custom)
The Absolute Domain to be used in the Hreflang URLs.
A fully qualified domain name (FQDN), sometimes also referred as an absolute domain name, is a domain name that specifies its exact location in the tree hierarchy of the Domain Name System (DNS). It specifies all domain levels, including the top-level domain and the root zone.
Examples:
example.com
www.example.com
blog.example.com
en-gb.example.com

If your site can be accessed through more than one FQDN, or if you want to set an different one in the Hreflang URL, then these options are important.
- Global: Use your setting from your Preferences > URLs > Absolute Domain (FQDN).
- Auto: When set to Auto, the current FQDN will be used in the Hreflang URL. This means that in the case you access i.e., www.example.com from blog.example.com, then blog.example.com will be the FQDN to be used in the Hreflang URL.
- Custom: Set a fixed FQDN to be used in the Hreflang URL.
Accepted format is without the scheme (http or https), without :// and without the relative path.
Correct Entry Examples:
example.com
www.example.com
en-gb.example.com
Wrong Entry Examples:
http://example.com
http://www.example.com/joomla/
http://example.com/index.php
www.example.com/joomla


Scheme
(Auto / http / https)
Set the Scheme to be used in the Hreflang URL. Auto will use the scheme of the current page.


Relative URI
(Auto / Menu Item* / Custom) This is the part of the URL after the domain. Example: /category/example-page
- Auto: It will automatically use the Relative URI of every page.
- Menu Item: Select a page from the menu. *Appears as an option only when the Language Code is set to x-default.
- Custom: Set a custom Relative URI. It must not include http:// or https:// and it must not include a domain.


Relative URI Language Code
Set a language code for the URI. For example if you want this Hreflang element to point to the French version of pages (or a page), and the Relative URI of the French version(s) begins with /fr/ then set fr in this field.


Area
Assign this item to an area of you site.
- All HTML Pages: Exclude Article Categories (All / Select / None)
Select whether you want this meta element to be excluded from the pages of articles within the categories of your choice. You can select more than one category.
- All HTML Pages: Exclude Contact Categories (All / Select / None)
Select whether you want this meta element to be excluded from the pages of contacts within the categories of your choice. You can select more than one category.
- All HTML Pages: Exclude Menu Items
You can exclude this meta element from one or more menu items of your site.
- Menu Items
Assign this item to one or more menu items of your choice.
- Article IDs
Comma separated IDs of articles.
- Article Categories
Select one or more categories from the list of article categories.
- Contact Categories
Select one or more categories from the list of contact categories.
- 3rd Party Components
Select one or more components from the list of components that are detected to be installed on your site. Core Joomla components are not on this list.
- Condition (Equals / Contains / Starts with / Ends with / Does not equal / Does not contain / Does not start with / Does not end with)
Compare the Relative URI string based on the given options.

- Condition: Equals: Apply this item on pages where the Relative URI is the same as the given string.
- Condition: Contains: Apply this item on pages where the Relative URI contains the given string.
- Condition: Starts with: Apply this item on pages where the Relative URI starts with the given string.
- Condition: Ends with: Apply this item on pages where the Relative URI ends with the given string.
- Condition: Does not equal: Apply this item on pages where the Relative URI is not the same as the given string.
- Condition: Does not contain: Apply this item on pages where the Relative URI does not contain the given string.
- Condition: Does not start with: Apply this item on pages where the Relative URI does not start with the given string.
- Condition: Does not end with: Apply this item on pages where the Relative URI does not end with the given string.

- Page Relative URI: String
The text string to be compared with the Relative URI of a page.
- Page Relative URI: Case Sensitive
Upper case and lower case text can be treated as distinct (case sensitive) or equivalent (case insensitive). Searches within electronic text can usually be sensitive to case or not, as required. When Case Sensitive is On the following example text cases will be considered as different: APP, App, app.
- Filter (Include / Exclude)
You can either include this meta element to the selected area or exclude it. If you Include it, it will appear only on that area and nowhere else. If you Exclude it, it will appear everywhere except the area you selected.
Note: If page A links to page B, page B must link back to page A. If this is not the case for all pages that use hreflang annotations, those annotations may be ignored or not interpreted correctly by the search engines.

Hreflang Categories

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Items can be organized in categories.

Custom Elements

Create, manage, and add items to specific pages.

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New/Edit Custom Element

Title
Set a title for the list in the backend. It will not be used in the generated HTML.


Attribute
- Name (HTML5)
Set a name for the name attribute of the meta element.
- Property (RDFa)
Set a name for the property attribute of the meta element.
- Itemprop
Set a name for the itemprop attribute of the meta element.
- Name & Property
You can have both Name (HTML5) and Property (RDFa) on the same meta element.
- Custom Attributes
You can include any number of custom Attributes in the element from the ones you have created in the Custom Attributes section. Note that in the case that you do not need the Content attribute (below), you can set it to None.


Custom Attributes
Select any number of attributes you wish to include in this Element. Tip: If the order of your custom attributes matters, you can order them accordingly in the list of Custom Attributes section. If you have too many, you can create categories for them. Note: If you don't see anything in the field, you have to create your custom attributes in the Custom Attributes section first.


Content
- Dynamic:
(Page Title, Meta Description, Site Name, URL, Language Code)
Select from the list of options and set a value that will automatically change based upon the page, the language and/or other factors. For example, the Page Title option will automatically set the title of a page of your site as the value of this Element.
- Custom:
Set a static/fixed value for the Element.
- None:
You can omit the Content of this Element in case you don't need it.


Content: Dynamic: Meta Description
- Page:
Use the Meta Description of the page. If a page has no Meta Description set, it will fallback to the Content Language Meta Description, and if that is not set, it will fallback to the Meta Description set in your Global Configuration.
- Content Language:
Use the Meta Description set in your Content Language options. If not set, it will fallback to the Meta Description set in your Global Configuration.
- Global Configuration:
Use the Meta Description set in your Global Configuration.


Content: Dynamic: URL
- Page:
Use the full URL of the page. Example: https://example.com/path/to/article
- Main Site:
Use the main URL of the site. Example: https://example.com/
Note that if your Joomla is setup in a subdirectory of the public webroot, then the relative path will also be included. Example: https://example.com/subdirectory-name/


Content: Dynamic: Language Code
- Default: Use the language code as it results based on all your Joomla settings, such as what you have set in your Content Language option and the Language Code plugin.
- Content Language Tag: Use the Tag as set in your Content Language options.
- Content Language URL Code: Use the URL Code as set in your Content Language options.
- Language Code Plugin: Use your settings from the Language Code plugin.


Content: Dynamic: Language Code: Content Language Tag
- Default: Use it as is.
- Dash: Use a dash as separator in case it is not. Example: en-GB
- Underscore: Use an underscore as separator. Example: en_GB


Area
Assign this item to an area of you site.
- All HTML Pages: Exclude Article Categories (All / Select / None)
Select whether you want this meta element to be excluded from the pages of articles within the categories of your choice. You can select more than one category.
- All HTML Pages: Exclude Contact Categories (All / Select / None)
Select whether you want this meta element to be excluded from the pages of contacts within the categories of your choice. You can select more than one category.
- All HTML Pages: Exclude Menu Items
You can exclude this meta element from one or more menu items of your site.
- Menu Items
Assign this item to one or more menu items of your choice.
- Article IDs
Comma separated IDs of articles.
- Article Categories
Select one or more categories from the list of article categories.
- Contact Categories
Select one or more categories from the list of contact categories.
- 3rd Party Components
Select one or more components from the list of components that are detected to be installed on your site. Core Joomla components are not on this list.
- Condition (Equals / Contains / Starts with / Ends with / Does not equal / Does not contain / Does not start with / Does not end with)
Compare the Relative URI string based on the given options.

- Condition: Equals: Apply this item on pages where the Relative URI is the same as the given string.
- Condition: Contains: Apply this item on pages where the Relative URI contains the given string.
- Condition: Starts with: Apply this item on pages where the Relative URI starts with the given string.
- Condition: Ends with: Apply this item on pages where the Relative URI ends with the given string.
- Condition: Does not equal: Apply this item on pages where the Relative URI is not the same as the given string.
- Condition: Does not contain: Apply this item on pages where the Relative URI does not contain the given string.
- Condition: Does not start with: Apply this item on pages where the Relative URI does not start with the given string.
- Condition: Does not end with: Apply this item on pages where the Relative URI does not end with the given string.

- Page Relative URI: String
The text string to be compared with the Relative URI of a page.
- Page Relative URI: Case Sensitive
Upper case and lower case text can be treated as distinct (case sensitive) or equivalent (case insensitive). Searches within electronic text can usually be sensitive to case or not, as required. When Case Sensitive is On the following example text cases will be considered as different: APP, App, app.
- Filter (Include / Exclude)
You can either include this meta element to the selected area or exclude it. If you Include it, it will appear only on that area and nowhere else. If you Exclude it, it will appear everywhere except the area you selected.

Custom Element Categories

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Items can be organized in categories.

Custom Attributes

Create, edit and maintain any number of custom attributes to be used in your Custom Elements.

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New/Edit Custom Attribute

Title
Set a title for the list in the backend. It will not be used in the generated HTML.


Name
Set a name for this Attribute.


Value
- Custom:
Set a static/fixed value for the Attribute.
- Dynamic:
(Page Title, Meta Description, Site Name, URL, Language Code)
Select from the list of options and set a value that will automatically change based upon the page, the language and/or other factors. For example, the Page Title option will automatically set the title of a page of your site as the value of this Attribute.


Value: Dynamic: Meta Description
- Page:
Use the Meta Description of the page. If a page has no Meta Description set, it will fallback to the Content Language Meta Description, and if that is not set, it will fallback to the Meta Description set in your Global Configuration.
- Content Language:
Use the Meta Description set in your Content Language options. If not set, it will fallback to the Meta Description set in your Global Configuration.
- Global Configuration:
Use the Meta Description set in your Global Configuration.


Value: Dynamic: URL
- Page: Use the full URL of the page. Example: https://example.com/path/to/article
- Main Site: Use the main URL of the site. Example: https://example.com/
Note that if your Joomla is setup in a subdirectory of the public webroot, then the relative path will also be included. Example: https://example.com/subdirectory-name/


Value: Dynamic: Language Code
- Default: Use the language code as it results based on all your Joomla settings, such as what you have set in your Content Language option and the Language Code plugin.
- Content Language Tag: Use the Tag as set in your Content Language options.
- Content Language URL Code: Use the URL Code as set in your Content Language options.
- Language Code Plugin: Use your settings from the Language Code plugin.


Value: Dynamic: Language Code: Content Language Tag
- Default: Use it as is.
- Dash: Use a dash as separator in case it is not. Example: en-GB
- Underscore: Use an underscore as separator. Example: en_GB

Custom Attribute Categories

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Items can be organized in categories.

Preferences

Global preferences that apply sitewide.

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Generic

Clear Frontend Cache
(On / Off)
When Joomla Global Configuration has caching enabled, activating this option ensures that the Frontend cache is automatically cleared during actions like saving.

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Language

Hreflang Elements
(On / Off)
Note: For Hreflang elements to be applied to the HTML document, your Joomla setup does not need to be multilingual.
For example you can have two or more different Joomla setups with a different language and even a different absolute domain on each, and use Hreflang elements to inform the search engines about their relation.


Language Codes
These fields provide the ability to change the language code in the generated HTML document. They auto-generate based on the languages you have installed on your site.
For example if you target all English speaking audience it is preferable to use en instead of en-GB or en-US.

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Canonical URLs

Global preferences for the Canonical URLs of this site. As a global preference it can be used in Canonical Elements, or in Open Graph URL properties.


Absolute Domain (FQDN)
The Absolute Domain of your site. A fully qualified domain name (FQDN), sometimes also referred as an absolute domain name, is a domain name that specifies its exact location in the tree hierarchy of the Domain Name System (DNS). It specifies all domain levels, including the top-level domain and the root zone.
Examples:
example.com
www.example.com
blog.example.com
en-gb.example.com

If your site can be accessed through more than one FQDN, here you must specify the one that should be used.


Scheme
(Auto / http / https)
If your site uses both http and https, then Auto will automatically detect the page scheme. On an https (secure) page, https scheme will be set to the canonical URL. On an http (non-secure) page, http will be set to the canonical URL. If you consider that one of the other two options should be the canonical, then set it here.


Lower Case
(On / Off)
Make sure the Canonical URL is always lower case. Letter case (or just case) is the distinction between the letters that are in larger upper case (also uppercase, capital letters, capitals, caps, large letters, or more formally majuscule) and smaller lower case (also lowercase, small letters, or more formally minuscule) in the written representation of certain languages.


Trailing Slash
(With / Without)
A trailing slash is the forward slash placed at the end of a URL. The usual Joomla behavior is to allow both to be used on pages. Here you can set which one you prefer as the canonical.
Note: If your Joomla is installed in a subdirectory and that subdirectory is used in your URLs, then the webroot (homepage) URL will always have a trailing slash marking that it is a directory.


Query String
(Remove / Ignore)
A query string is the part of a uniform resource locator (URL) containing data that do not fit conveniently into a hierarchical path structure. The query string commonly includes fields added to a base URL by a Web browser or other client application.
Example: ?color=blue&cur=eur

A canonical URL should not contain query strings because they usually point to the same page (i.e, a product page).


Global Canonical Elements
(On / Off)
A canonical link element is an HTML element that helps webmasters prevent duplicate content issues by specifying the canonical or preferred version of a web page as part of search engine optimization. It is described in RFC 6596, which went live in April 2012.


View Access Levels
(All / Guests / User Groups)
Due to the fact that Canonical URLs are set for search engine optimization, search engines will always appear as guests (Guest User Group). Setting this to Guests will make sure the Canonical URLs are not set on your pages for logged in users. If you consider you need to specify User Groups then you can do it here.
Note: Anything set to the Public user group is visible from both logged-in and not logged-in users.

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URLs

Absolute Domain (FQDN)
The Absolute Domain of your site.
A fully qualified domain name (FQDN), sometimes also referred as an absolute domain name, is a domain name that specifies its exact location in the tree hierarchy of the Domain Name System (DNS). It specifies all domain levels, including the top-level domain and the root zone.
Examples:
example.com
www.example.com
blog.example.com
en-gb.example.com
If your site can be accessed through more than one FQDN, then these options are important.
- Auto:
When set to Auto, the current FQDN will be used in URLs. This means that in the case you access i.e., www.example.com from blog.example.com, then blog.example.com will be the FQDN to be used in URLs.
- Custom:
Set a fixed FQDN to be used in URLs. This is similar to setting your $live_site variable in your configuration.php file.
Note: If you have set the $live_site variable in your configuration.php file, then you should not worry and select Auto here. For sites that use both http and https on different pages the $live_site is not recommended.

Interface

Customize the User Interface (UI) to your liking.

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Twitter List

Open Graph List

Highwire Press List

Canonical List

Hreflang List

Custom Element List

Custom Attribute List

Category
(Show Column & Under Title / Show Column / Show Under Title / Hide)
Select the visibility of the Category an item belongs to, in the list of items.


Category Prefix
(Show / Hide)
Select the visibility of the word Category before the actual category the item belongs to. This is only visible when your Category setting allows for the visibility of the category.


Property
(Intense / Normal / Hide)
Select the visibility of this column in the list of items in the Backend.


Content
(Intense / Normal / Hide)
Select the visibility of this column in the list of items in the Backend.


Canonical Relative URL
(Intense / Normal / Hide)
Select the visibility of this column in the list of items in the Backend.


Name
(Intense / Normal / Hide)
Select the visibility of this column in the list of items in the Backend.


Value
(Intense / Normal / Hide)
Select the visibility of this column in the list of items in the Backend.


Type
(Intense / Normal / Hide)
Select the visibility of this column in the list of items in the Backend.


Language Code
(Intense / Normal / Hide)
Select the visibility of this column in the list of items in the Backend.


Absolute Domain (FQDN)
(Intense / Normal / Hide)
Select the visibility of this column in the list of items in the Backend.


Scheme
(Intense / Normal / Hide)
Select the visibility of this column in the list of items in the Backend.


Relative URI
(Intense / Normal / Hide)
Select the visibility of this column in the list of items in the Backend.


Relative URI Language Code
(Intense / Normal / Hide)
Select the visibility of this column in the list of items in the Backend.


Language
(Show / Hide)
Select the visibility of this column in the list of items in the Backend.


Author
(Show / Hide)
Select the visibility of this column in the list of items in the Backend.


Created Date
(Show / Hide)
Select the visibility of this column in the list of items in the Backend.


ID
(Show / Hide)
Select the visibility of this column in the list of items in the Backend.

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Notices & Warnings

If the system detects any kind of misconfiguration in your Joomla CMS or the extension, it will display a notice or warning, either in the Dashboard or a specific section.
It is recommended to keep them On.


Joomla Version Warnings
(On / Off)
Display possible warnings in the administration area.


Setup Plugin Warnings
(On / Off)
Display possible warnings in the administration area.


SEF Notice
(On / Off)
Allow to display a notice related to your SEO Settings in your Global Configuration in case it is not set properly.


Hreflang Elements Notice
(On / Off)
Allow to display a notice related to your Hreflang Elements setting in your Preferences in case it is set to Off.


Language Code Notice
(On / Off)
Allow to display a notice related to your System - Language Code plugin.


Language Filter Notice
(On / Off)
Allow to display a notice related to your System - Language Filter plugin.


Google Scholar Basic Warnings
(On / Off)
Display possible warnings in the administration area.


Google Scholar Journal and Conference Warnings
(On / Off)
Display possible warnings in the administration area.

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Misc

Documentation Button
(Dashboard / On / Off)
Select the visibility of the Documentation button on the toolbars. The button opens a modal window with the online documentation of the software.


Changelog Button
(Dashboard / On / Off)
Select the visibility of the Changelog button on the toolbars. The button opens a modal window with the online changelog of the software.


Options Button
(Dashboard / On / Off)
Select the visibility of the Options button on the toolbars. The button opens the section with the global component Updates and Permissions.


Side Bar Menus
Select the visibility of the Side Bar Menus. The Side Bar appears on the left and provides an easy way to navigate to different sections directly.


Layout Colors
(Default / Eorisis)


Dashboard Links Color
(Grey / Green / Blue )

Options

Component Configuration.

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Updates

Auth Token
You can install updates directly using the Joomla Extension Update. You need your Auth Token entered, as well as the eorisis: Setup plugin installed and enabled.

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Permissions

Default permissions used for all items in this component.
Manage the permission settings for the user groups below.
If you change the setting, it will apply to this and all child groups and items.

Inherited
The permissions from the parent group will be used.

Allowed
The group being edited will be able to take this action (but if this is in conflict with the parent group it will have no impact; a conflict will be indicated by Not Allowed (Locked) under Calculated Settings).

Denied (Not Allowed)
No matter what the parent group's setting is, the group being edited can't take this action.

Not Set
Used only for the Public group in global configuration. The Public group is the parent of all other groups. If a permission is not set, it is treated as Deny but can be changed for child groups, components, categories and items.


Configure ACL & Options
(Inherited / Allowed / Denied)
Allows users in the group to edit the options and permissions of this extension.


Configure Options Only
(Inherited / Allowed / Denied)
Allows users in the group to edit the options except the permissions of this extension.


Access Administration Interface
(Inherited / Allowed / Denied)
Allows users in the group to access the administration interface for this extension.


Create
(Inherited / Allowed / Denied)
Allows users in this group to create items and categories in this extension.


Delete
(Inherited / Allowed / Denied)
Allows users in this group to delete items and categories in this extension.


Edit
(Inherited / Allowed / Denied)
Allows users in this group to edit items and categories in this extension.


Edit State
(Inherited / Allowed / Denied)
Allows users in this group to change the state of items and categories in this extension.


Edit Own
(Inherited / Allowed / Denied)
Allows users in this group to edit any items and categories they have created in this extension.


Edit DCMI (Dublin Core) Global Options
(Inherited / Allowed / Denied)
Allows users in this group to edit the DCMI (Dublin Core) global options of this extension.


Edit Open Graph Global Options
(Inherited / Allowed / Denied)
Allows users in this group to edit the Open Graph global options of this extension.


Edit Global Preferences
(Inherited / Allowed / Denied)
Allows users in this group to edit the Global Preferences of this extension.


Edit Interface
(Inherited / Allowed / Denied)
Allows users in this group to edit the UI of this extension.

Notes

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Joomla Framework: The Head Section
Based on how the Joomla framework currently works, there are times that the metadata are added in the end of the head section of the page, instead of where you would expect them to be. This is no issue except that it looks strange/ugly. This takes place when the metadata happen to have the same name or property, no matter if they have different content.

For the metadata, Joomla uses a PHP Associative Array with key/value pairs, and uses the name or property as the key when being added to the Array using the Joomla framework. Since PHP Arrays cannot have the same key, if you wanted to have a meta element with the same property, for example, og:locale:alternate more than once on a page, you would be allowed only one in the Array - the property being the key of the Array would not be able to exist more than once, it would get replaced with the last entry.

To solve this, metadata that require multiple entries are added using an alternative method of the Joomla framework. Such custom entries are the last part of the head section Array and they always appear last. The software doesn't want to drop performance by sorting all the head section, only to beautify it. There might be an option in a future version for this to be turned on/off. The best thing one should expect to happen soon, is the Joomla framework to improve the way it currently works in relation to the head section.