Most search engines have techniques for removing such pages from their listings automatically, but as the internet continues to increase in size, it becomes more and more difficult for a search engine to check all the pages in the index regularly. Reporting of dead links helps to keep the indexes clean and accurate, and this can usually be done by submitting the dead link to the search engine. De-listing The removal of pages from a search engine's index. Removal can occur for various reasons, including unreliability of the machine that hosts a site or because of perceived attempts at spamdexing. Description Descriptive text associated with a web page and displayed, usually with the page title and URL, when the page appears in a list of pages generated by a search engine or directory as a result of a query.
Directories often use text provided at registration .
Direct Hit A system which monitors the search engine users' selections from search engine results, counting which results are clicked on most, and how long visitors spend at that site, so as to improve relevancy. Used by HotBot and as a plug-in to Apple's new innovative Sherlock search system. Directory A server or a collection of servers dedicated to indexing internet web pages and returning lists of pages which match particular queries. Dogpile A meta search engine. Domain A sub-set of internet addresses.