Web Cache

Included in the search engine page, the page back up, there own server cache, the search engine when users click on the "Cached" link, the search engine will crawl at the time Spider system and save the web page content to show up , known as the "cached."DefinitionAs the web page snapshot is stored in the search engine server, so check the speed of web page snapshot is often faster than direct access to web pages. Web page snapshot, bright display with search keywords, users can click directly showing bright keywords to find occurrences of words, easy to quickly find the information to improve search efficiency. When the search page is deleted or the connection fails, you can use this web page snapshot to view the original content.Edit this paragraph principleInterpretationWhy do we only search engine in the search box enter the keywords you want to query, web capture and storageSearch engine will immediately in the vast expanse of the Internet, to catch all of the pages contain keywords, presented in front of us. If you understand the search engines work, they will not think so. Each page has a lot of hyperlinks, links to other pages, and these pages are still a lot of hyperlinks, and links to other pages, search engine Spider system in such a way, on the Internet gradually crawled down a large number of pages search engines Big Brother Google, its name came from the mathematics of an almost insurmountable number: googol, the number is 10 to the 100th, in its pages stored in a database the billions of pages, these pages over the way through, from the Net Spider system crawling and preserved. All of these pages, the search engine results when carried out in the show, they all referred to as web snapshot. Baidu snapshot diagramSnapshots captureWhen users use search engines to search the Web on the Internet, the fact that the pages in the search engines to search the database, users mistakenly believe that once the search engines found on the Internet Web page that contains the keywords. Pages on the Internet is not static, but constantly add, delete, change. Therefore, the search engine pages database pages need to update both pages on the Internet to re-copy it again, if you delete one of your Web site, then copy the database search engines - web snapshot does not immediately be removed, but will be removed over a period. However, Google's web page snapshot is a snapshot of the archive marking time, then, at this point in time, the page is certainly there. Example: July 20, 2008 to open a Google web page snapshot, but this show is a snapshot of Google in the July 10 search and archive. What does it mean? It said: July 20, 2008, this page may have been deleted or updated, but, July 10, 2008, when Google archive copy of the page when the page is real.Search engine and snapshotSearch engines also try to collect all able to find the URL, the page also contains the same words are queued, purely commercial search engines use pure commercial principles, as well as ranking by hits to the website, thus ensuring the user's search efficiency the highest. Search engine is just a tool, skilled driving it, you can find on the Internet is a wealth of resources the most user-friendly snapshot of the current page is the "Baidu", "Baidu Snapshot" with google snapshot of all the features, but also increase keyword targeting, to provide users with faster, more efficient keyword search method, in terms of convenience, "Baidu Snapshot" far beyond other similar search engines.Edit the role of this paragraphPages on the Internet changes frequently, when the search page is deleted or dead links, directly click on the link can not view the contents page. At this point you can use the web to view this page snapshot of the original content. For example you posted on a site some articles can no longer access the site, users can search by keyword in the search for the article and then visit a snapshot backup of the contents of the article also Cached directly from the search engine database of web pages stored in the transfer out of the archive file, without actually connecting to the web site where, as is access to the search engine's database, this way more than direct access to the site where the safety of the website can be avoided embedded Trojan, virus threats; read web speed is usually faster.