PR Checker - Page Rank Checker

What is the Page Rank of a site?

Page Rank is a system used by Google which determines the importance of a website or website's page. It analyses the quality and number of inbound links pointing towards a particular site. It calculates the page rank based upon the number of do-follow links pointing towards a site. Each link from one page to another represents a positive vote to the page the link points to.

The more links a page receives, the higher it's importance becomes and the higher it's page rank it receives. If the site has in-bound links coming from a high PR site then the weight of the link gained by the site is larger.

There are many factors which affect the Page Rank of a site:

Sites which are updated frequently are given more preference
Sites which add new content regularly are favoured
New inbound links pointing to a site improve the sites PR.
Inbound links pointing to deep-links of a site also improve it's Page Rank
The less broken/dead links a site has, the better

However there are a number of things which can decrease the Page Rank of a site:

Any inbound links to a site coming from Poker, Porn, Drug, Gambling related sites.
(Google really hates these types of sites)
Irrelevant content on your site.
Any Black-Hat SEO techniques used in a site's link building campaign.
Linking back to the same website which linked to your site will decrease your Page Rank
Getting any link/s from a link-farm which is black-listed by Google will drop your site's Page Rank and could also end up in your site getting de-indexed in search results.
Getting too many in-bound links in a short period of time will also affect your sites Page Rank negatively.