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Xenu, or Xenu's Link Sleuth, is a computer program that checks websites for broken hyperlinks.<ref>"Looking for link validator.", New Straits Times, May 1, 2000.</ref> It is written by Tilman Hausherr and is proprietary software available at no charge. The program is named after Xenu, the galactic ruler from Scientology scripture.
FormatEdit
Link Sleuth runs on Microsoft Windows. Link verification is performed on links which appear in <a> tags, as well as images, frames, plug-ins, backgrounds, local image maps, style sheets, scripts, and Java applets. The program follows links to other pages, and checks the links on those pages also, so it is possible to check an entire site for broken links in one session. Xenu displays a continuously updated list of URLs which can be sorted according to different criteria.<ref>Gunther, D., Recommendation on Quality Assurance and Selection of resources for the ETB network Template:Webarchive, European Treasury Browser, P. 48., 2002, retrieved Template:Clarify span.</ref> The program uses a "simple, no-frills user-interface",<ref>McCoy, Linda., Link Sleuth, Deccan Herald, August 24, 2005, Retrieved 23 May 2014</ref> and can help users understand how certain Web sites are structured.<ref>Mruck, Katja., Qualitative Research Networking: FQS as an Example, Qualitative Social Research, Volume 1, No. 3, December 2000.</ref> The program has support for SSL Web sites.<ref>Mickiewicz, Matt., Download of the Week, SitePoint Tribune, Issue 279., SitePoint, February 5, 2004.</ref>
ReceptionEdit
Xenu's Link Sleuth software was called the "fastest link-checking software" by PC Magazine,<ref>"70 assists for a winning site. (Web Builder's Toolkit)", PC Magazine, April 23, 2002.</ref> and "amazingly fast and very accurate" by a University of Wyoming newsletter.<ref>Visual Communications eNews, University of Wyoming, June 2005., retrieved Template:Clarify span.</ref> The software was used as a testing tool in a usability study at Grand Valley State University.<ref>Grissom, Scott., The Trials and Tribulations of Usability Testing, Grand Valley State University, October 8, 2003.</ref>
Xenu's Link Sleuth has also been cited by Rossett's The ASTD E-Learning Handbook,<ref>Template:Cite book</ref> Zhong's Intelligent Technologies for Information Analysis,<ref>Template:Cite book</ref> Gerrard's Risk-Based E-Business Testing,<ref>Template:Cite book</ref> Reynolds' The Complete E-Commerce Book,<ref>Template:Cite book</ref> Slocombe's Max Hits: Websites that Work,<ref>Template:Cite book</ref> George's The ABC of SEO,<ref>Template:Cite book</ref> as well as the German books {{#invoke:Lang|lang}},<ref>Template:Cite book</ref> and {{#invoke:Lang|lang}},<ref>Template:Cite book</ref> and Italian books, {{#invoke:Lang|lang}},<ref>Template:Cite book</ref> and {{#invoke:Lang|lang}}.<ref>Template:Cite book</ref>