Monday, June 29, 2009

Google Bots working behind the curtain.........

Googlebots (also known as robot, bots or spiders) are set of programs to fetch up billions of web pages. Bots are software built to go through every page of a website, categorize them and place them into the Google database. They have their specific algorithms
which determine how many pages to fetch from a website.

Google has three well known bots:

  • The Adsense bot
  • The Freshbot
  • The DeepCrawl.
Adsense bot is generally used for publishers having Adsense on their website. Whenever a new page is created JavaScript within the address code sends a message to the Adsense bot and pages are reviewed by bot within 15 minutes.

Freshbots only use to crawl the most popular pages on a website. Such pages can be one or even thousand. Generally freshbots visit a typical website within 1 to 15 days; it usually depends upon the popularity of the website. Some very popular websites like Amazon.com receives fresh bot crawls in every 10 minute. The credit goes to regular updating and frequent changes in the websites. Freshbot finds all the deeper links in your website and collect those links in the database.

Deepcrawl bot visit a website once per month, and crawl over all the links referenced by the freshbot. Though deep crawl occurs only once in a month it takes up to a month for your entire site to be indexed in Google. Even if you submit Google sitemap your website you have to wait for a deep crawl to occur.

Remember:
Google likes fresh content and if you can get genuine valuable inbound links for your website Google will definitely fall in love with your website. Checkout the complete Google webmasters guidelines to generate more traffic for your website and to rank higher in
Google with a better page rank.

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How does Google index a website??

Most of us are crazy about ranking our websites on Google but are not aware about the Google methodology of indexing a website. Google is like a large book with an organized index,ready to locate whatever we want. So let it know first, how Google, the great indexes a particular website. How it find web pages matching visitors query and determine the order of results listed in the search engine displayed results.

There are three major pillars, Google rely on while indexing Web Pages

Bots and Crawlers: Huge set of programs used to fetch or crawl billions of web pages and automatically following all of the links on each web page.

Indexers: A program that analyzes web pages downloaded by the spider and the crawlers.

Servers: For interacting between the user and the search engines.

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