PageRank is a link analysis algorithm, named after Larry Page, used by the Google Internet search engine that assigns a numerical weighting to each element of a hyper-linked set of documents, such as the World Wide Web, with the purpose of “measuring” its relative importance within the set. The algorithm may be applied to any collection of entities with reciprocal quotations and references.

Sites’ positions in Google Search results are determined based on a number of factors designed to provide end-users with helpful, accurate search results. These factors are explained in more detail at http://www.google.com/corporate/tech.html.

In general, webmasters can improve the rank of their sites by increasing the number of high-quality sites that link to their pages. For more information about improving your site’s visibility in the Google search results, we recommend reviewing Google’s webmaster guidelines. They outline core concepts for maintaining a Google-friendly website.

The life span of a Google query normally lasts less than half a second, yet involves a number of different steps that must be completed before results can be delivered to a person seeking information.

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