Google returns the right results first.
Google uses a complicated mathematical analysis, calculated on more than a billion hyperlinks on the web, to return high-quality search results so you don't have to sift through junk. This analysis allows Google to estimate the quality, or importance, of every web page it returns. The importance of a web page is entirely independent of any query. A page like www.google.com has high importance if
This definition seems circular, and it is. Nonetheless, it yields a well-defined notion of importance that makes finding high quality sites easy.
- Other pages with high importance point to www.google.com
- Lots of other pages with high importance point to www.google.com
Of course, important pages mean nothing to you if they don't match your query, so Google uses sophisticated text-matching techniques to find pages that are both important and relevant to your search. For instance, when considering a page, Google looks at what the pages linking to that page have to say about it.