Aug 30, 2012 – Bing Search Preview pageviews are now recognized as being crawler traffic and are no longer counted as pageviews from real people in a site’s certified site metrics. Impact: Some sites may have seen a drop in pageviews as a result of this change.
July 19, 2012 – Alexa Pro subscribers whose site’s metrics are certified can choose to have their Alexa Traffic Rank based on certified metrics that are directly measured from their website instead of estimated panel-based metrics.
Impact: More accurate Alexa Rank for those site owners who choose to base their rank on certified metrics.
June 25, 2012 – Some new forms of google search traffic and new regional search engines (eniro.se, kvasir.no, mynet.com, ozu.es, voila.fr, virgilio.it, wp.pl, yam.com) are now recognized as part of the ‘Percent of visits that came from a Search Engine’.
Impact: Some sites may have seen an increase in the percent of visits from search as a result of this change.