Jun 2, 2011

Google Architecture

Google Search Engine works upon its own algorithm to present the results for every search query. The algorithms are kept secret but there are certain rules which are followed and need to be understood keeping the website optimization in view. Following is a generalized working of Google’s search engine.


Google Architecture: Web crawling is carried out by several distributed crawlers.




Indexing is done in three fundamental steps.

1. Parsing
2. Indexing documents into Barrels
3. Sorting

Then the ranking system comes into play. Google maintains much more information than any other typical search engines like Yahoo & Bing. Every hit list contains position, font and capitalization info. Google’s ranking system is designed such that no particular factor is given too much focus. For a single word query google will look at the hit list for that keyword. The hits are considered as different types (title, anchor, URL, plain text large font, plain text small font….) where each has its own type-weight.

Google is successful in giving the most relevant results for different search queries because of such control measures and filter processes. So according to Google search engine news, keep it simple and original to rank better in their search results.


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