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Back in "the day," Alexa was a very talked about tool for checking the traffic data for a third party site. These days, people know to take Alexa's data with a grain of salt. Alexa data can be easily spoofed and tampered with, at least - that is what I am told, so just be careful when using it.
That being said, DigitalPoint Forums has a large discussion on Alexa. They claim it has just updated their numbers.
Scanning the thread, it seems like most webmasters are happy with the new results. One said:
Both of my sites had a massive 1000% change as of the Alexa update.
Again, be careful when using this data.
Forum discussion at DigitalPoint Forums.
Comments:
Pete Prestipino
02/11/2009 02:33 pm
Alexa just started using ISP data in addition to their toolbar data (which is what was so easy to tamper/spoof).
Michael Martinez
02/11/2009 04:39 pm
Yes, we SHOULD care because this is the new Alexa algorithm, remember? We have to watch it and evaluate it and see if its data is any better than before.
Barrie Adams
02/12/2009 11:26 am
Alexa data is worthless IMO, with so many better ways of gathering stats who in there right mind would use Alexa data to analyse a website?