Totals for Active Sites Across All Domains
June 2000 – May 2012

Developer	April 2012	Percent	May 2012	Percent	Change
Apache	107,686,403	56.66%	109,278,620	57.02%	0.36
nginx	24,253,806	12.76%	23,938,754	12.49%	-0.27
Microsoft	22,813,215	12.00%	22,803,442	11.90%	-0.10
Google	15,671,026	8.25%	15,855,806	8.27%	0.03

For more information see Active Sites

Market Share for Top Servers Across the Million Busiest Sites
September 2008 – May 2012

Developer	April 2012	Percent	May 2012	Percent	Change
Apache	618,001	62.08%	617,430	62.02%	-0.06
Microsoft	148,171	14.89%	146,974	14.76%	-0.12
nginx	100,394	10.09%	100,417	10.09%	0.00
Google	28,773	2.89%	29,071	2.92%	0.03