How Search Engines works ?

You might have known or not known about how the search engines works.

Here i got to know some information about how Search Engines works.

i. At First, they will look for everything that available in web and then they read all the new websites which are available in the web, they aslo look if anything has updated in its previous indexed websites.
This part is know as Crawling.

ii. Then, they will make index for everything which they found as new in the web. This part under Indexing.

iii. Then, they will show the results based on the user query which matches against the keyword indexed in that particular Search Engine.