Date sold: February 2015

Add an "o" and the deal gets even better.

The story of how "Domain King" Rick Schwartz flipped Porno.com is pretty incredible.

He bought it from a college kid way back in 1997, paying $42,000, even though the kid had snagged it for only $5,000 the week before.

Schwartz told The Domains that since then the site earned "well in excess of over $10 million via parking and redirects without every providing actual adult content." Meaning that he likely reeled in more than $20 million total from the scandalous domain.

The buyer in February's massive, all-cash sale was reportedly a company in Prague that also owns Swingers.com and PornoTv.com.