Alexa and Google Page Rank are the most important ranking systems in the internet world. Google ranks sites by their authorities, and Alexa ranks by traffic. We can evaluate whether a website is good or not by these two ranks.

Let me talk about Alexa ranking here. Alexa defines themselves as “the web information company,” but to webmasters and bloggers, they are so much more. Essentially, Alexa is a company that measures web traffic on almost every website on the internet through their increasingly popular toolbar plugin. It means that your visitors must have installed alexa toolbars on their computer so they will be counted into your rank. If not, your website won’t get rank from these visitors. But now Alexa has changed this Ranking Metrics. Alexa is now using other sources apart from the toolbar to draw its traffic metrics. I believe this is a great progress for Alexa. It is more reasonable and scientific.

You can check your Google PR and Alexa Rank by visiting dnScoop.com.

As a SEO, your must pay much attention on Google PR and Alexa Rank. So now you should learn more about them.