Microsoft-IIS

January 2009 research surveyed users of 185,497,213 sites on unusual monthly loss of 1.23 million sites.

Apache's market share has been found out to have grown by more than 1 percentage, and now the site has gained 1.27 million sites this month. 

Consequently, the share of Microsoft IIS has fallen to less than a third of the market making its loss the highest in January. Microsoft-IIS websites expired from the survey after more than 2 million blogging sites running on the site.