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A canonical link element is an HTML element that helps webmasters prevent duplicate content issues in search engine optimization by specifying the "canonical" or "preferred" version of a web page. It is described in RFC 6596, which went live in April 2012.
For example, an HTML element "span" without content can, through its class and id, provide parameters for JS specifying CSS for any parts of the page. For example, if a page contains a "span" element with class FA and id lc, MediaWiki:Monobook.js specifies the style and title of elements "li" of class interwiki-lc, thus controlling the style ...
A link relation is a descriptive attribute attached to a hyperlink in order to define the type of the link, or the relationship between the source and destination resources. The attribute can be used by automated systems, or can be presented to a user in a different way.
In other cases the URL may redirect to a valid one (for example, page titles are converted to their canonical form as they are when they appear in wikilinks). Shorter URL Wikipedia:URLShortener gives a way to make short URLs to Wikipedia pages.
The first term inside the brackets is the title of the page you would be taken to (the link target), and anything after the vertical bar is what the link looks like for the reader on the original page (the link label). For example: [[a | b]] appears as "b" but links to page "a", thus: b.
When users view the web page in a browser, they can click the text to activate the link and visit the page whose URL is in the link. [ 25 ] In HTML, an "anchor" can be either the origin (the anchor text ) or the target (destination) end of a hyperlink .
A template to display and format a URL, inside other tempates Template parameters [Edit template data] Parameter Description Type Status URL 1 The URL to be linked String required Display text 2 The text to be displayed instead of the URL. Deprecated String deprecated Maintenance categories Category:Pages using URL template with unknown parameters (56) See also {{ URL2 }} {{ #invoke:WikidataIB ...
This can specify a new URL to replace one page with another. This is supported by most web browsers. [14] [15] A timeout of zero seconds effects an immediate redirect. This is treated like a 301 permanent redirect by Google, allowing transfer of PageRank to the target page. [16] This is an example of a simple HTML document that uses this technique: