Like the majority of the major search engines like Google, Google assembles the web pages in the search index by utilizing special “searchbot” or crawler software to scour the net. Found pages are instantly put into Google’s ever-growing database whenever you try a search, you are searching this database of Webpages, not the website itself.
The outcomes of the Google searches are rated based on Google’s trademarked Page Rank technology. This PR technology measures the number of other pages link to particular page; the greater links to this page, the greater that PR. Additionally, Page Rank assigns a greater weight to links which come from higher ranked pages. Therefore if a webpage is linked from numerous high-ranked pages, that page will itself achieve a greater ranking.
The idea would be that the popular a webpage is, the greater that page’s ultimate value. Although this sounds similar to a recognition contest (which is), it’s surprising how frequently this method provides high-quality results.
The amount of Webpages listed in Google is probably the biggest of others search engines (Google and AllTheWeb are constantly struggling for “greatest” boasting privileges), and that means you stand a reasonably pretty good possibility of really finding that which you were trying to find. And also the Google internet search engine is comparatively wise, it evaluates the key phrases inside your query and recognizes the type of google result you are searching for. (For instance, should you enter an individual’s title and city, it knows to look its phonebook? not the overall Website index.)