Google runs on a unique combination of advanced hardware and software.
The speed you experience can be attributed in part to the efficiency of our search
algorithm and partly to the thousands of low cost PC's we've networked
together to create a super fast search engine.
The heart of our software is PageRank?, a system for ranking web pages developed by
Google founders Larry Page and Sergey Brin at Stanford University.
PageRank Explained PageRank relies on the uniquely democratic nature of the web
by using its vast link structure as an indicator of an individual page's value.
In essence, Google interprets a link from page A to page B as a vote, by page A, for
page B. But, Google looks at more than the sheer volume of votes,
or links a page receives; it also analyzes the page that casts the vote. Votes cast
by pages that are themselves "important" weigh more heavily and help to make other
Important, high-quality sites receive a higher PageRank, which Google remembers
each time it conducts a search. Of course, important pages mean nothing to you
if they don't match your query. So, Google combines PageRank with sophisticated
text-matching techniques to find pages that are both important and relevant to your
search. Google goes far beyond the number of times a term appears on a page and
examines all aspects of the page's content (and the content of the pages linking to
it) to determine if it's a good match for your query.
IntegrityGoogle's complex, automated methods make human tampering with our results
extremely difficult. And though we do run relevant ads above and next to our results,
Google does not sell placement within the results themselves
(i.e., no one can buy a higher PageRank). A Google search is an easy, honest and
objective way to find high-quality websites with information relevant to your search.