Heh. I own https://9007199254740991.com/

It’s the max safe integer in double precision floating point format.

So... you reinvented ip addresses.

Those are class 1.111B domains. I actually buy them a little cheaper, but have to do it one year at a time. It's only 6-9 digits though, not any string of digits

my domains were also dirty cheap. they jacked up the prices afterwards because they can