Totals for Active Servers Across All Domains
June 2000 – May 2011

Developer	April 2011	Percent	May 2011	Percent	Change
Apache	58,382,787	55.12%	61,961,645	57.52%	2.40
Microsoft	16,333,388	15.42%	16,598,468	15.41%	-0.01
Google	11,892,939	11.23%	12,651,775	11.75%	0.52
nginx	9,192,405	8.68%	9,499,307	8.82%	0.14
lighttpd	660,001	0.62%	678,076	0.63%	0.01

For more information on active servers, see Active Sites

Market Share for Top Servers Across the Million Busiest Sites
September 2008 – May 2011

Developer	April 2011	Percent	May 2011	Percent	Change
Apache	657,920	66.17%	656,953	66.08%	-0.09
Microsoft	159,173	16.01%	157,795	15.87%	-0.14
nginx	64,871	6.52%	67,478	6.79%	0.26
Google	21,057	2.12%	21,268	2.14%	0.02