Thursday, July 26, 2007

More about Alexa

Regular readers will know that I monitor the Alexa rank of various websites on a daily basis. The rank is determined by the number of unique visitors to the site each day as long as the visitors have the Alexa toolbar running.

I discovered that by visiting these sites daily myself had an impact on their ranks.
Once Alexa had started logging them, and their ranks appeared as less that 1 million, my daily visits to the sites were pushing them up fairly rapidly.

I suspect there is a limit though. I plotted graphs of their rise, and every single one of the 9 sites that I'm monitoring has a curve that starts off quite steep, and is now starting to flatten out around the 2 million mark.

I've read that to be noticed in the search engines, you need an Alexa rank of less than 200,000, so I doubt if it's possible to push your sites up there yourself unless you can make numerous unique visits (from different IP addresses). However, that's probably forbidden by Alexa and if they find out, you could be pulled from their system.

I'd like to know how they would find out though if you were running from different IP addresses.

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