Link to Netcraft uptime report.
http://netcraft.com
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Get access to data on 45,000 websites that are Netcraft Customers. We know of 31,069 live websites using Netcraft and an additional 13,931 sites that used Netcraft historically and 11,496 websites in the United States.
Get a list of 45,000 websites using Netcraft which includes location information, hosting data, contact details, 31,069 currently live websites and an additional 301 domains that redirect to sites in this list. 13,931 sites that used this technology previously and 11,496 websites in the United States currently using Netcraft.