how does google search engine work?

Answer 1

Google says: The heart of our software is PageRank™, a system for ranking web pages developed by our founders Larry Page and Sergey Brin at Stanford University. And while we have dozens of engineers working to improve every aspect of Google on a daily basis, PageRank continues to provide the basis for all of our web search tools.

You can see the original paper by Larry Page and Sergey Brin here for more details http://www-db.stanford.edu/~backrub/google.html

Answer 2

First it finds all the pages on the web using a program known as a 'crawler' or 'spider'. It starts at one page and finds all the hypertext links to other pages on that page. It adds the web address of all these pages to its list of pages. It then goes to each of these and repeats the process, gradually finding pages that link to other pages that link to other pages, etc, until it has found all the pages on the web. i.e. it crawls around the web like a spider. This isn't really a one-off beginning to end process, it is something that it keeps doing all the time.

Secondly it records in a database all the words used on each page (in a highly compressed form I imagine).

Thirdly, it allows people to go to www.google.com and enter search queries. It finds a list of all the pages containing the requested combination of words.

Fourthly, it has to present the results with pages arranged in order of relevance. This is where it gets tricky. The exact method is constantly changed by google to improve its service or maximize google's profits. Generally speaking, pages which have a lot of other pages linking to them are deemed to be 'popular' and appear near the beginning of the search results. For example, a major news site like CNN.com will be linked to from lots of other pages and will appear well before obscure pages written by a private citizen that very few other websites link to. The order of the results is known as the page ranking. Website owners struggle to optimize their pages so that they are ranked No. 1 in the results. They make sure that their pages contain lots of words and hidden tags that are relevent to their subject. There are endless books and websites dedicated to how to achieve the best ranking. If a business doesn't appear in the first page or two of results for a particular search term, they may as well not exists, because users seldom look at more than the first 2 pages of results.

Answer 3

If you were somehow intelligent enough to find this and type in a question and submit it are you honestly being serious when you ask how a search engine works??? WOW

Answer 4

The search engine will collect the data which is in meta data from all sites when it will match with our search word then it will collect the site and display's us.

Answer 5

strangly enough
when you type your question into google you get your answer
i guess thats how it works

Answer 6

Read every article on this website and u'll know everything: www.seoforgoogle.com

Answer 7

Pretty good!

Answer 8

So fast!

Answer 9

ask googleeeeeeeeeeeee.........