Seems that Alexa has been stuck for over 2 weeks now. While many advertisers and publishers do not fully rely on Alexa rankings for deciding the value of a website, it still proved useful in many cases.

Here is an excerpt from their blog, proving that they have acknowledged the issue:

As some of you have noticed, our traffic data is a few days behind. We are working hard to catch up, and you will see new data appearing over the next several days.
Thank you for your patience!

Posted on February 21st, it seems that several days for them means over a week. I hope their system isn’t down for good. In the meantime, here is what you can use to measure traffic to your website or blog:

Compete - http://www.compete.com/

Quantcast - http://www.quantcast.com/

And if you still haven’t found out about this, here is the tool used to measure traffic stats and Google PR - SearchStatus.

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