Census of — · — domains in this generation · zone files read daily, web answers every ~6 weeks One pixel per /24 · Hilbert order
0/8The whole IPv4 space · zoom for /24s255/8
Occupancy, IPv4 · Hilbert curve: 0/8 top-left, adjacent blocks stay adjacent one /8 = 16,777,216 addresses

Blast radius

If one network vanished, what share of the domains we can fully see would go dark? A domain counts only when every one of its servers sits in that network.