The search engine might make the copy accessible to users.
Web crawlers that obey restrictions in robots.txt[2] or meta tags[3] by the site webmaster may not make a cached copy available to search engine users if instructed not to.
Search engine cache can be used for crime investigation,[4] legal proceedings[5] and journalism.
[8] The service was designed for websites that might show up in a Google search result, but are temporarily offline.
Microsoft explained, "the internet has evolved for better reliability, and many pages aren't optimized for cache viewing.