List of Page Rank Checkers

One way to gauge the popularity of a site is to check its page rank. I normally use the alexa toolbar to find a page rank. Some page rank checker give the google page rank code to install on one's site. Many other page rank checker software monetise your site and one can gauge the popularity there.Just dont take the figures as gospel and one can do well to check page rank.

Here is a guide to a list of page rank checkers.

http://www.evolvingseo.com/2012/01/24/the-ultimate-list-of-rank-checkers/

Check out the  basis on which on can do rank checking for a site.