What is google cache and how it works

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    What is google cache and how it works

    What is Google cache and how it works ?

    First of all What is caching?

    Caching is a component that improves performance by transparently storing data closer to end users such that the future requests for that data can be served faster without going back to the origin server. Caching reduces both the load on the origin server as well as speeds up users' online experience. There are two main types of caches namely browser caches which reside on the user's computer and the other is proxy caches which are on the network and serve one or many users.

    What is Google cache ?

    Google Cache is nothing but a snapshot or a copy of a page stored by Google as a back-up. Google usually takes a snapshot of each page it examines and caches or stores that version as a back-up. The cached version is what Google uses to judge if a page is a good match for our query. Google’s servers are typically much faster than many web servers, we can often access a page’s cached version faster than the page itself.

    Basically every result of our search includes a Cached link. Clicking on that link takes you to the Google cached version of that particular web page, instead of taking you to the current version of the page.

    This is useful if the original page is unavailable because of any of the following reason:

    * Internet congestion
    * A down, overloaded, or just slow website
    * The owner’s recently removing the page from the Web

    Sometimes a site that requires registration or a subscription can access the cached version from that particular site.

    You can always access page’s cached version faster than the page itself as we all know that google’s servers are typically much more faster than any web servers.

    If you ever find that Google is returning a link to a page that appears to have little to do with your query, or if you can not find the information that you are looking for on the current version of the page, then you can just take a look at the cached version.

    On other hand almost every site that you come across while using Google will definitely have the option of accessing the cached version right in there in the search result. You can click on “cached” to immediately get back to the last copy that Google had made of that particular page.

    Google Cache is a great and neat solution if a web page that you want to browse is down or not available. If you're visiting a site and it returns a 404 error message, you can either do a search on Google for that site by prefixing the cache: operator parameters to your search query, so your search query would be something like cache:Google

    How To access Google Cache:

    1) Just go to Google Web Search text box and add the keyword cache: in front of the URL that you would like to see. Ex. cache:eukhost.com
    2) There is “cached” link in each of the Google Web Search results, except for those web pages that do not allow Google Web Search to cache or snapshot on them. If there is this “Cached” link, just click.
    With reference to Google Webmaster Tools Help on Remove a page or site from Google’s search results, a web page will not be available in Google Cache database if it is not visible to search engine crawler .
    3)In Google Chrome web browser, just use its Address bar as Google Web Search text box

    Google Cache shows a page to be like as it was when Google last crawled it successfully, so it may be outdated. Google doesn't store images, scripts and other embedded objects, but it tries to retrieve them from their original location. If the page is down, most of the external resources won't be accessible and the page will load slowly.

    Reasons for using Google Cache?

    Google Cache can be used for various purposes few of which are as follows:

    * To see the contents of the page (if the original site is temporarily down)
    * To see the content of the dynamically generated page (if the original page has been updated since the cache and no longer contains the information you need. Thus, if Google returns a link to a page that appears to have little to do with your actual query, or if you can’t find the information you’re seeking on the current version of the page, take a look at the cached version)
    * To access websites blocked in your country (or requiring registration/ subscriptions)
    * To more quickly access the information of a slow loading page.

    If anyone of you already know this then please share your knowledge in same post.

    Reference :
    1) Google Cached Pages: What Are Cached Pages? - Google Guide
    2) Everything You Should Know About Google Cache
    Last edited by ronniev; 07-10-2010, 14:52.