Page Rank

Alexa data is based on websites' traffic and this is how they rank them. If you want to improve your rankings in Alexa, you should focus on traffic generating strategies like link building, email marketing, article marketing, etc. MozRank is similar to Google's Page Rank. SEOmoz formulates the MozRank of a website by lots of metrics and factors.

PR page rank is based on quality back links of Website and daily updation...........It's numeric value from 0-10 ...There are also lots of rank available like alexa rank or moz rank ....

Search engines now doesn't proper value it. If Pr is greater...it indicates the web page is excellent or the best. To remove that..google now don't care much about it..googlebot really likes only the clean new unique information which objectives the search phrase and not the web enterprise. However we can still adhere to the PR but in common..it doesn't mean the search engines doesn't examine PR 0 internet sites.

PageRank is one of the greatest of the two hundred different ranking aspects in the Google algorithm. This is why there is so much effort put in by webmasters to build links. It is absolutely the ranking factor that Google have given the most media attention.

PR (Page Rank) show the popularity level of the site. While ranking your site search engine consider PR as one of the most important factors.