The sale, on 17 November 2010, was brokered by domain name sale house Sedo, but has only now been officially recognised as reaching the world’s highest price for an online domain.
Sedo, in its 10th year of trading, has brokered over £240m worth of domain names including a number of high-profile, seven-figure transactions for premium domains such as Vodka.com, Pizza.com and Russia.com.
Kathy Nielsen, director of sales at Sedo, said: "The sale of Sex.com was truly a team effort. We spent about two years with the domain, establishing the relationship, researching and finding the right buyer and managing the domain’s transfer.
"We’re honoured 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 Sex.com domain was put up for sale in July 2010 after the previous owner Escom LLC went bankrupt.
Clover Holdings, a private company registered on the Caribbean island of St Vincent, put in the highest bid for the domain.
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