In the July 2012 survey we received responses from 665,916,461 sites, a decrease of 31M since last month. This drop comes as a result of the loss of a large number of wildcard hostnames with similar content at AmeriNOC (-30M), Axoft Group (-10M), and Tailor Made Servers (-8M). All of these sites were running Apache, resulting in a decrease of 39M hostnames running on Apache and dropping its market share slightly to 61%. All other web server vendors gained hostnames this month, with the biggest increase being 1.5M hostnames running on Microsoft IIS. This was followed by nginx and lighttpd with increases of 950k and 800k hostnames respectively. Within Netcraft’s million busiest websites, nginx experienced a jump in market share this month to 12.5% after an increase of 22k sites. Nginx also saw the biggest switch of hostnames, with about.com changing around 600 top-million hostnames from Apache, the most popular of these being pcsupport.about.com. Nginx now stands nearly 1 percentage point of market share behind Microsoft. Apache and Microsoft both saw losses within the top million, of 32k and 10k respectively.