how search engine works A Search engine does not examine every page on the web. When a user puts in a query on the search box, the engine first builds an index of it. – Custom database of all the words on all pages. The search query is everything that the user types to get results which is made up of one or more search terms, plus optional special characters. Firstly ● It examine the Query what the user are for searching, and then expand that query. Means check the words variants[ plural/singular, verbs, Nouns] ● Then check the Spelling on the Query. ● Check the word order ● Checks the search operator [e.g. putting IP: ip address] for searching the Ip of sites, [Define : Anything] for definition of any word. Next It match the query presents on its database [SERVER]. After then It match the query with all the data that have been Crawled by it. what are web crawlers? “web crawlers” are used to discover publicly available webpages. The most well-known crawler is called “Googlebot.” Crawlers look at webpages and follow links on those pages, much like you would if you were browsing content on the web. They go from link to link and bring data about those webpages back to Google’s servers. The Results are sent to the Index Server where it is indexed that which query should be displayed first on the searched results. ● This results is made by the rank of the page, which is known as PAGE RANK. After all these process finally there required results displayed on your srceen. ●All these tasks are done within a seconds only and it gives you the results what you wants. Hatsoff to all the Search Engine Developers