Top 10 US web hosts ratings, based on domains, January 2011.

Rank Hosting Company Domains
1 Wildwestdomains 32,063,007
2 Oneandone 2,893,841
3 Hostgator 1,968,770
4 Yahoo hosting 1,696,373
5 Bluehost 1,558,379
6 Dreamhost 1,199,682
7 Hostmonster 768,390
8 Mediatemple 460,739
9 ATT-hosting 433,812
10 Ipowerweb 416,992


The entire data set currently consists of all COM, NET, ORG, BIZ, INFO Domain Names.

The clients of a Web Hosting company are identified as all Domains served by the nameservers of that particular Company.

Source of data: webhosting.info