Term: "Link Checker"

Is a tool used to check for broken hyperlinks in a website. Link checking is one aspect of site management -- the regular maintenance necessary to keep a site up-to-date. A "broken hyperlink" is one that does not correctly point to the intended destination or page. The most frequent circumstances involves a hyperlink "breaking" when the destination page has been deleted or maybe moved to another position within the site. Basic link checking involves testing for "404 - File Not Found" responses. Link checkers can also test for slow loading pages, noting pages that fail to respond within a reasonable time limit. A great Free tool can be found here http://validator.w3.org/checklink .While link checking tools do away with a considerable amount of work, they cannot completely eliminate the need for human intervention as you may still get a valid response from a page where the content has changed drastically or the domain may have expired.