Page Rank
"Page Rank" is one of the methods Google uses to determine a page’s relevance or importance. It is only one part of the story when it comes to the Google listing.
"Page Rank" performs an objective measurement of the importance of web pages.
Factors that affect your page rank(PR):
- Link volume/number.
- Link type.
- Link age.
- Type of websites that link to your website.
According to Google "Page Rank" 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 pages "important."
"Page Rank" also considers the importance of each page that casts a vote, as votes from some pages are considered to have greater value, thus giving the linked page greater value. Important pages receive a higher PageRank and appear at the top of the search results.
Important, high-quality sites receive a higher "Page Rank", 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 "Page Rank" 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.
Google uses "Page Rank" to examine the entire link structure of the web and determine which pages are most important. It then conducts hypertext-matching analysis to determine which pages are relevant to the specific search being conducted. By combining overall importance and query-specific relevance, Google is able to put the most relevant and reliable results first.
Hypertext-Matching Analysis: Google's search engine also analyzes page content. However, instead of simply scanning for page-based text (which can be manipulated by site publishers through meta-tags), Google's technology analyzes the full content of a page and factors in fonts, subdivisions and the precise location of each word. Google also analyzes the content of neighboring web pages to ensure the results returned are the most relevant to a user's query.
Google's order of results is automatically determined by more than 100 factors, including "Page Rank" algorithm. "Page Rank" is also displayed on the toolbar of your browser if you’ve installed the Google toolbar Page Rank