Tuesday, August 19, 2008

How Does Search Engine Works?

Every one has an idea of working of search engines like google, yahoo, MSN, AOL, etc.
In simple words it follows four steps:

1. Crawling-In this step spiders or robots or MSN bots which are actually S/W program, crawls the entire site related to particular keyword or search query.

2. Indexing-Then it collects all sites related to that topic or word and stores them in search engines database.

3. Processing- As results are in lakhs, it should be sorted according to the relevancy for the search topic.So, it creates another list for specific answers of the search topic.

4. Result page- Ultimately what ever is the out come of the processing will become the search page result.

According to me this is the process followed by the all the search engines . Although different search engines applies different algorithm for crawling S/W program.


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