DomainTools
Jay Westerdal (born 1978) is an American domainer and entrepreneur, best known for his work creating DomainTools.com, a web service that looks up historical ownership of a website. The whois service was integrated into Google's onebox in May 2008.[1] He later sold the company in 2008 for a reported $16–$18 million.[2] He is a technology blogger.[3]