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Could you briefly explain the PageRank algorithm?

Edited by pritaeas because: Moved to SEO.
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PageRank models a "random surfer" who follows links at random (with occasional jumps). A page's PageRank is the steady-state probability that the surfer lands on that page. That makes PageRank a global, link-structure score: a page earns weight from the pages that link to it, and those pages pass on a share of their own weight divided across their outgoing links.

A compact formulation is:

PR(u) = (1 - d)/N + d * sum_{v in B_u} PR(v) / L(v)

where d is the damping factor (commonly 0.85), N is the number of pages, B_u is the set of pages linking to u, and L(v) is the outlink count of v. The original description and rationale are in Brin & Page (1998) The PageRank Citation Ranking.

Computationally, PageRank is computed by iterating that equation (power iteration) until scores converge. The damping term provides "teleportation" so the Markov chain is irreducible and a unique stationary vector exists; pages with no outlinks (dangling nodes) are handled by redistributing their weight so the process still converges.

Clarifications tied to the replies above: was right that both link quantity and the quality of linking pages matter — but "quality" here means the linking page's PageRank and how many other links it shares that rank across. s assertion that visit frequency directly raises PageRank is incorrect: PageRank comes from the link graph, not raw traffic. and are correct that backlinks and perceived authority matter in practice, but PageRank is only one signal among many used by search engines (see Google's explanation of how search works) How Search Works. Practical takeaway: focus on earning relevant, editorial links and clear site structure rather than chasing toolbar scores.

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Member Avatar for Dani

Sure: PageRank is based on the quantity (how many) and quality (the pagerank of each of those pages) of other webpages that link to a particular page on the web. It is just one factor that goes into ranking webpages in Google.

Member Avatar for Sagarika12313

PageRank is a link analysis algorithm, named after Larry Page and used by the Google web search engine, that assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of "measuring" its relative importance within the set. In simpler word, Page Rank may be considered as Popularity Rank. It dignify what amount of importance a web page contains in the view of Google. You may follow the link below to know the complex lgorithm of Goolge behind this terminology in a glance: http://en.wikipedia.org/wiki/PageRank

It is very tough to be familier with the background mechanism of determining a page rank by Google but in a simpler way it is somehow affected by the popularity of any specific page over Internet. The more frequent a page is accessed from different systems having different IP addresses around the globe, the more PR that page will be assigned by the Google.

Member Avatar for TimSham

PR is depend upon their website backlink strenght and they check also some of the links are related to their niche or not...

Member Avatar for iamseo

PageRank also scores the website's authority and trustworthiness. The higher the PageRank, the more the site is viewed as an authority in its target niche.

commented: If you want to improve your pagerank, then just focus on improving your search engine rankings, and your pagerank will increase too. +0
Member Avatar for Austinlanger

It is basically depend on how site is performing in search engine if site is performing well and attract a lots of new visitors on daily basis then it would be prove good and along-with that site should get quality back links to increase site's page rank.

Member Avatar for Manish02

Page Rank algorithm is used by google search engine to give numerical weight to each page of the website. Page Rank is link analysis algorithm. Google give ranking to website using this algorithms calculations.

Member Avatar for touqeer s

the free PR checker tool enables you to check the current pagerank of your web site instantly via the form above, however, you might consider to be quite boring to visit online page rank checking tool every time you'd like to check Google pagerank of your web pages..

so, it might be a good idea to put a small page rank icon to your site to check and display your Google rankings right on your web site pages. To check PR icons - click here.

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