SAN FRANCISCO -- The parent company of GoDaddy.com, a top registrar of Internet domain names, has been sold to a group of private investment firms for $2.25 billion, a person familiar with the transaction told The Associated Press.Go Daddy Group Inc.'s sale to KKR, Silver Lake and Technology Crossover Ventures comes as the company expects to top $1.1 billion in revenue this year because expanding Internet use has fueled the creation of more websites and the "domains" needed to help find them.