Search Engines and How They Work

Search engines have some vital components that helps them filter out and find the relevant web sites you may have searched for. Firstly there is ''crawling''. This is where the search engine will use the hyperlink structure of the web to ''crawl'' web pages. 
 Secondly their is ''processing queries''. This is when a search is done and the search engine scans all the data in it's index to find web pages and documents that match the word or phrase that has been searched. It is worth noting that a search engine will ignore terms or words such as ''and'' and ''of'' as they hinder the search process. 
 Another vital part of a search engine is ''indexing documents''. One a web page has been ''crawled'' all the data found on that page will be stored in a huge database, this data is what makes up a search engines index. Last but not least there is ''Ranking Results''. This is the process of the search engines algorithm running calculations to determine which web pages are the best match for the phrase that was searched. This is how search engine results are ranked from most relevant to least relevant. 
 So next time you use a search engine, and within seconds you have found what you are looking for, just take a second and think of all the processes that go in to the search engine finding the correct match to your query.