Alexa changes website ranking system

Monday, April 21st, 2008 at 4:28 pm

Web traffic rankings site Alexa.com (a division of Amazon) has finally changed it’s ranking system. Alexa will no longer measure data based on users of the Alexa toolbar, rather ranking sites based on aggregating data from various sources.

Alexa announced the changes this past week, noting that many websites will notice significant changes in their rankings. Although the service has been popular with smaller sites, which don’t qualify for Nielsen rankings, critics have long argued that Alexa’s reliance on data from toolbar users skewed the results and created biased rankings.

Alexa rankings data that dates beyond the previous nine months will no longer be available, but in the company blog Alexa reported ongoing plans to adjust historical data too. In the meantime, Alexa graphs will now only show the past 9 months.

Excerpt from:
Alexa changes website ranking system

Tweet This Post