March 2011 Web Server Survey

In the March 2011 survey we received responses from 298,002,705 sites, a growth of just over 13M hostnames on last month's survey; a continuation of the steady growth which has been seen since July last year.

Apache was the biggest contributor to this month's growth, with an increase of 8.5M hostnames. This increase comes despite large losses of 2.23M at due to their servers no longer reporting a server banner. Most of the increase is once again due to AmeriNOC and Softlayer, with gains of 5.5M and 1.2M hostnames respectively. Large increases were also seen at both Leaseweb and Hetzner Online AG.

nginx gained 1.2M hostnames this month due to increases at a number of hosting companies, the largest of which was 289k at Hetzner Online AG.

Small gains were seen by both Microsoft and Google, with increases of 560k and 205k hostnames respectively. Microsoft's increase came primarily from Go Daddy, and an increase of 296k hostnames hosted by Microsoft which made up for a drop seen there last month. Despite the gain in hostnames, Microsoft experienced a 0.7 percentage point loss in market share, while Google's share was relatively unchanged.

The only web server vendor to see a loss in the number of hostnames this month was lighttpd. It experienced a drop of 157k hostnames which was shared by multiple hosting companies.

Total Sites Across All Domains
August 1995 - March 2011

Total Sites Across All Domains, August 1995 - March 2011

Market Share for Top Servers Across All Domains
August 1995 - March 2011

Graph of market share for top servers across all domains, August 1995 - March 2011

DeveloperFebruary 2011PercentMarch 2011PercentChange

Totals for Active Servers Across All Domains
June 2000 - March 2011

DeveloperFebruary 2011PercentMarch 2011PercentChange

For more information on active servers, see Active Sites

Market Share for Top Servers Across the Million Busiest Sites
September 2008 - March 2011

DeveloperFebruary 2011PercentMarch 2011PercentChange