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External links and references are two important elements of Wikipedia that newcomers sometimes find trouble with. This page is designed to cover only the technical aspects of linking and referencing; it is essential that editors also familiarize themselves with Wikipedia:External links, Wikipedia:Reliable sources and Wikipedia:Citing sources, as well as Wikipedia's various other policies ...
When editing source, links are inserted or deleted simply by adding or removing pairs of square brackets enclosing the text concerned (plus handling piped links). There are some helpful tools: When using the visual editor , selecting some text, then clicking the link icon above the text box (two links of a chain) will allow the link to be added ...
Wikipedia has categories of articles; for example, "Phrases". Adding the wikitext [[Category:Phrases]] to an article will add that article to the category "Phrases". (This will not create any visible addition to the body text of the article.) If you instead want to create a visible link to a category, add a colon in front of the word "Category".
The rules about whether to include an external link in a list apply regardless of the method used to format the list. This section does not apply if the external link is serving as a citation to a reliable source for a stand-alone list entry that otherwise meets that list's inclusion criteria (e.g., newspaper articles or poll results).
Generally, coding can be copied and pasted, without writing new code. There is a short list of markup and tips at Help:Cheatsheet. In addition to wikitext, some HTML elements are also allowed for presentation formatting. See Help:HTML in wikitext for information on this.
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.
Even though PHP's urlencode() automatically percent-encodes them, these characters do not get URL-encoded by wfUrlencode(). The ":" symbol is a partial exception – it is not encoded anywhere except for IIS 7.0.
A separate invisible hot area interface allows for swapping skins or labels within the linked hot areas without repetitive embedding of links in the various skin elements. Text hyperlink. Hyperlink is embedded into a word or a phrase and makes this text clickable. Image hyperlink. Hyperlink is embedded into an image and makes this image clickable.