In the December 2011 survey we received responses from 555,482,744 sites, giving a rise of 29.5 million (+5.6%) since last month.

Since June all major web server vendors have continuously gained hostnames. This month Apache saw, once again, the largest increase of just over 20M hostnames, which is the largest gain for Apache in five months. The second largest growth was seen by Microsoft, with a gain of 1.2M; however, this still resulted in Microsoft losing market share. nginx, on the other hand, successfully recovered from its recent loss bringing the web server vendor to another all-time high of 8.85% market share.

All server vendors also saw an increase in Active Sites this month. Apache experienced the largest increase with a gain of nearly 1.5M sites. Microsoft also gained 0.5M Active Sites increasing its market share advantage over its close rival nginx by 0.7 percentage points. The total number of Active Sites in our survey now stands at 175 million.

Total Sites Across All Domains

August 1995 - December 2011

Market Share for Top Servers Across All Domains

August 1995 - December 2011

Developer November 2011 Percent December 2011 Percent Change Apache 341,880,662 65.00% 362,267,922 65.22% 0.22 Microsoft 81,261,099 15.45% 82,521,809 14.86% -0.59 nginx 44,731,780 8.50% 49,143,289 8.85% 0.34 Google 17,749,748 3.37% 18,464,148 3.32% -0.05

Totals for Active Sites Across All Domains

June 2000 - December 2011

Developer November 2011 Percent December 2011 Percent Change Apache 100,516,026 58.36% 102,005,032 58.21% -0.15 Microsoft 21,109,639 12.26% 21,572,870 12.31% 0.05 nginx 19,982,947 11.60% 20,342,324 11.61% 0.01 Google 14,215,141 8.25% 14,240,979 8.13% -0.13

For more information see Active Sites

Market Share for Top Servers Across the Million Busiest Sites

September 2008 - December 2011