November 2011 Web Server Survey

In the November 2011 survey, we received responses from 525,998,433 sites, giving a rise of 22 million (+4.3%) since last month.

Once again, all of the major web server vendors gained sites this month; however, Apache showed a greater rise of 15.9 million sites this time, allowing it to claw back some of the market share it lost last month. Microsoft showed the second largest absolute gain of 2.3 million sites, although this was not enough to prevent its market share falling by 0.21 percentage points. nginx also suffered a small loss in market share after reaching its all-time high of 8.54% last month.

In terms of active sites, Microsoft was the only major web server vendor to show a loss. Conversely, nginx made the largest gain, rising by 0.86 million active sites and bringing it to within 0.66 percentage points of Microsoft's market share. The total number of active sites in our survey now stands at 172 million.

Total Sites Across All Domains
August 1995 - November 2011

Total Sites Across All Domains, August 1995 - November 2011


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

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


DeveloperOctober 2011PercentNovember 2011PercentChange
Apache326,008,43264.67%341,880,66265.00%0.32
Microsoft78,937,06515.66%81,261,09915.45%-0.21
nginx43,037,0798.54%44,731,7808.50%-0.03
Google17,487,9243.47%17,749,7483.37%-0.09

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


DeveloperOctober 2011PercentNovember 2011PercentChange
Apache99,883,55058.90%100,516,02658.36%-0.55
Microsoft21,137,07112.46%21,109,63912.26%-0.21
nginx19,121,34811.28%19,982,94711.60%0.32
Google13,781,5088.13%14,215,1418.25%0.13

For more information see Active Sites

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


DeveloperOctober 2011PercentNovember 2011PercentChange
Apache649,39765.28%646,66765.00%-0.28
Microsoft151,24515.20%150,08415.09%-0.12
nginx77,9807.84%79,6998.01%0.17
Google22,2262.23%22,2392.24%0.00