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Encyclopedia > Dead link

A dead link or broken link is a link on the world wide web that points to a webpage or server that is permanently unavailable. Dead links are commonplace on the Internet, but they are considered to be unprofessional. The World Wide Web (WWW or simply the Web) is a global information space which people can read-from and write-to via a large number of different Internet-connected devices. ... A webpage or web page is a page of the World Wide Web, usually in HTML/XHTML format (the file extensions are typically htm or html) and with hypertext links to enable navigation from one page or section to another. ... In information technology, a server is a computer system that provides services to other computing systems—called clients—over a network. ...


The most common result of a dead link is a 404 error, which indicates that the page could not be found. Mozilla Firefox displaying an Apache HTTP Server 404 error page. ...


Dead links can also refer to URLs that point to sites unrelated to the content requested, e.g., a search for "Sports at ESPN.com" resulting in pornography or advertisements. A Uniform Resource Locator, URL (spelled out as an acronym, not pronounced as earl), or Web address, is a standardized address name layout for resources (such as documents or images) on the Internet (or elsewhere). ...


The process of links "spontaneously" changing to dead state is commonly called link rot. Link rot is the process by which links on a website gradually become irrelevant or broken as time goes on, because websites that they link to disappear, change their content or redirect to new locations. ...


There are also links that are crafted especially to not resolve, as a kind of meme, known as Zangelding, which apparently means in Dutch Tanglething. A zangelding is a list of self referencing broken links.


Prevention and replacements

Dead links can be prevented using permalinks. A permalink (a portmanteau made by contracting the phrase permanent link) is a type of URL designed to refer to a specific information item (often a news story or blog item) and to remain unchanged permanently, or at least for a lengthy period of time to prevent link rot. ...


See also

A permalink (a portmanteau made by contracting the phrase permanent link) is a type of URL designed to refer to a specific information item (often a news story or blog item) and to remain unchanged permanently, or at least for a lengthy period of time to prevent link rot. ... Internet Archive headquarters. ...

External links


  Results from FactBites:
 
Peter Suber, Dead Links (672 words)
When I know that a link is dead and when I have time, I try to discover whether the site is offline or at a new location.
If there are dead links in recent postings to my FOS News blog, then I'd like to fix them.
This means that the link pages for courses I haven't taught in a while are likely to be thick with dead links.
DLC : Dead Link Check (421 words)
DLC is a simple HTTP link checker written in Perl (released under the GPL).
It can generate an HTML output for easy checking of the results, and can process a link cache file to hasten multiple requests (links life is time stamp enforced).
Dead Link Check is initially created as an extension to Public Bookmark Generator, but can be used by itself as is.
  More results at FactBites »

 

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