I was looking at Alexa’s Traffic Rank and how it allows you to compare websites. This got me thinking that evaluating a URL is a bit like evaluating an university or a college. You can compare its popularity, reference, credibility, incoming links, or measure its relative importance, influence, citations, etc.
So I decided to compare Alexa’s Traffic Rank to the 9 university rankings I had compiled. Using the Top 100 universities, you can see that Alexa’s traffic rank is actually quite accurate in predicting the overall rank…
On the graph, you can distinguish 3 colors:
What do you think?