August 2011 Web Server Survey

In the August 2011 survey we received responses from 463,000,317 sites.

This month there has been a large increase in the number of sites found by the survey, which is now approaching half a billion hostnames. There were particularly large increases in the numbers of sites hosted by Softlayer, AmeriNOC, China Telecom, and the social networking communities Tumblr, Skyrock and Hyves.

Amazon also showed substantial growth and now hosts several million sites at its EC2 facility. EC2 (Elastic Compute Cloud) is Amazon's cloud computing platform, allowing website owners to quickly rescale resources to meet demand. It has expanded significantly with a new data center recently opened in Tokyo, and is expected to have a revenue of $750M (Source: UBS via Business Week) this year.

However, even with the large increase in sites, the market share of the different server software has changed only a little. Of the leading web servers, just nginx gained share this month, whilst Apache, Microsoft and Google each showed small losses.


Total Sites Across All Domains
August 1995 - August 2011

Total Sites Across All Domains, August 1995 - August 2011


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

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


Developer July 2011 Percent August 2011 Percent Change
Apache 235,326,985 65.86% 301,771,518 65.18% -0.69
Microsoft 60,086,346 16.82% 73,415,916 15.86% -0.96
nginx 23,357,497 6.54% 35,533,439 7.67% 1.14
Google 15,641,574 4.38% 17,061,003 3.68% -0.69

Totals for Active Sites Across All Domains
June 2000 - August 2011


Developer July 2011 Percent August 2011 Percent Change
Apache 64,599,970 57.95% 97,632,585 59.99% 2.04
Microsoft 16,085,788 14.43% 20,339,954 12.50% -1.93
nginx 9,999,488 8.97% 17,053,642 10.48% 1.51
Google 13,002,195 11.66% 13,523,636 8.31% -3.35

For more information see Active Sites

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


Developer July 2011 Percent August 2011 Percent Change
Apache 656,701 66.03% 655,553 65.91% -0.12
Microsoft 155,981 15.68% 154,685 15.55% -0.13
nginx 70,036 7.04% 71,517 7.19% 0.15
Google 21,907 2.20% 21,871 2.20% -0.00