HOW SEARCH ENGINE WORKS

In this modern tech life every person spend more than given time at internet through gadgets,systems,and from many other resources
we get many doubts daily and many questions arises in our brain . Right
we simply use the help of famous search engines to clarify our doubts
even a newly born kid can tell the name of a top most search engine 
none other than Google..
 

SEARCH EQUATION

Every day their are more than lakhs and crores of searches were performed .
I even mentioned about this particular thing in my previous blog
Power of internet
and comming to the point. Have ever think how the search is performed in search engine 
May be some of you think its easy because whatever you typed it gives result in fraction of seconds.
But their is lot of work done behind the screen
this is what i am going to explain you in this blog enhance your master(brain) by reading

HOW SEARCH ENGINE WORKS :

• Crawling And Indexing
• Algorithms
• Fighting spam 

These were the main things that takes place during the searching process

CRAWLING AND INDEXING :
Search starts with the web. It's made up of over 60  trillion individual pages and it's constantly growing. Google navigates the web by crawling.
"The perfect search engine would understand what you mean and give back exactly what you want"
when you started typing your need on Google it immediately searches the whole pages present in the web with the particular words you have types and mark up the required websites
once the pages were ready it starts sorting the pages by their content and other factors
And they keep track of it all in the index. its over 100 million gigabytes.

ALGORITHMS: 
 They write programs & formulas to deliver the best results possible
 

Algorithms get to work looking for clues to better understand what you mean.

1.  Spellings
2.  Auto complete
3.  Search methods
4.  Synonyms
5.  Query Understanding
6.  Google instant

Based on these clues, we pull relevant documents from INDEX.and then they rank the results using over 200 factors all this happens in 1/8th of a second
these algorithms are changed frequently and these changes are used as the new ideas and the search evaluators take these ideas and run experiments, analyze the results, tweak them, and run them again and again.
 results can take a variety of forms
 Knowledge Graph,Snippets,Videos,Images,Refinements,Voice Search 


 FIGHTING SPAM:
 Google search engine fight spam 24/7 to keep your results relevant.
 The majority of spam removal is automatic. They examine other questionable documents by hand. If they find spam, they take manual action.
When they take action, they attempt to notify the website owners.Site owners can fix their sites and let them know.

This is how search engine is performed
By the way,in this span of reading this article approximately 2,787,350 searches were performed.
 
Thanks for reading i hope this made you little bit understandable about how search engine works