Say it once — thirty-thirty — and it’s filed. The digits-then-letters construction gives it a modern, jersey-number feel while staying trivially easy to say on radio, on a podcast, or across a bar. And the 30/30 reference carries real weight: in baseball it’s one of the game’s most exclusive clubs, 30 homers and 30 steals in a season.

Registered since 2005 and held clean. Short numeric-hybrid .coms in this class rarely circulate.