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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.
When visiting a web page, the referrer or referring page is the URL of the previous web page from which a link was followed. More generally, a referrer is the URL of a previous item which led to this request. For example, the referrer for an image is generally the HTML page on which it is to be displayed.
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.
A query string is a part of a uniform resource locator that assigns values to specified parameters.A query string commonly includes fields added to a base URL by a Web browser or other client application, for example as part of an HTML document, choosing the appearance of a page, or jumping to positions in multimedia content.
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 ...
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.
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 .
In HTML DOM (Document Object Model), every element is a node: [4] A document is a document node. All HTML elements are element nodes. All HTML attributes are attribute nodes. Text inserted into HTML elements are text nodes. Comments are comment nodes.