Purchased by Clover Holdings and, brokered by Sedo, the record-breaking deal beat out amounts paid for Vodka.com, Pizza.com and Russia.com.
"The sale of Sex.com was truly a team effort. We spent about two years with the domain, establishing the relationships, researching and finding the right buyer and managing the domain's transfer," said Kathy Nielsen, director of sales at Sedo.
She added, "We're honored that Sedo was trusted with such a high-value and high-profile sale, and we're ecstatic that it is now being recognized by Guinness World Records as a record-breaking deal."
The desirable domain was originally scooped up by Escom in 2006 for $14 million but was then put up for sale at auction last fall after the company filed for Chapter 11 bankruptcy.
The original name was bought by Gary Kremen in 1994 but illegally wrestled away by Stephen Cohen. After a heated legal battle, the courts awarded the domain to Kremen in 2000 who then sold it to Escom.
The site is currently being used as a placeholder for ads and sees 125,000 visits a day, according to its mysterious new owner, who said he is currently deciding on a new business model.