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robots.txt is the filename used for implementing the Robots Exclusion Protocol, a standard used by websites to indicate to visiting web crawlers and other web robots which portions of the website they are allowed to visit. The standard, developed in 1994, relies on voluntary compliance. Malicious bots can use the file as a directory of which ...
# # There is a special exception for API mobileview to allow dynamic # mobile web & app views to load section content. # These views aren't HTTP-cached but use parser cache aggressively # and don't expose special: pages etc.
Text file. The Sitemaps protocol allows the Sitemap to be a simple list of URLs in a text file. The file specifications of XML Sitemaps apply to text Sitemaps as well; the file must be UTF-8 encoded, and cannot be more than 50MiB (uncompressed) or contain more than 50,000 URLs. Sitemaps that exceed these limits should be broken up into multiple ...
Web site owners who do not want search engines to deep link, or want them only to index specific pages can request so using the Robots Exclusion Standard (robots.txt file). People who favor deep linking often feel that content owners who do not provide a robots.txt file are implying by default that they do not object to deep linking either by ...
Site map. A sitemap is a list of pages of a web site within a domain. There are three primary kinds of sitemap: Sitemaps used during the planning of a website by its designers. Human-visible listings, typically hierarchical, of the pages on a site. Structured listings intended for web crawlers such as search engines.
When a search engine visits a site, the robots.txt located in the root directory is the first file crawled. The robots.txt file is then parsed and will instruct the robot as to which pages are not to be crawled. As a search engine crawler may keep a cached copy of this file, it may on occasion crawl pages a webmaster does not wish to crawl.
Robots.txt is a well known file for search engine optimization and protection against Google dorking. It involves the use of robots.txt to disallow everything or specific endpoints (hackers can still search robots.txt for endpoints) which prevents Google bots from crawling sensitive endpoints such as admin panels.
There are a variety of ways in which Wikipedia attempts to control search engine indexing, commonly termed "noindexing" on Wikipedia. The default behavior is that articles older than 90 days are indexed. All of the methods rely on using the noindex HTML meta tag, which tells search engines not to index certain pages.