Stats
ccTLD · Internet Computer Bureau Limited

.io TLD stats

.io held about 1,142,688 names in October 2025, by a third-party estimate; by 22 Oct 2026 certificates had shown us 373,669 of them, confirmed in DNS.

1.14M
names, October 2025, third-party estimate
373,669
seen in certificates by 22 Oct 2026, a floor

last night, in detail

Oct 22, 2026
What moved · on Oct 22, 2026
first seen by us
+16,296
gone from DNS
0
changed nameservers
0
Net
+16,296
Oct 16, 2026 to Oct 22, 2026 · axis starts at the data, not at zero

Names seen in certificate transparency logs and confirmed in DNS, as of Oct 22, 2026. A floor, not a count of the TLD: a name that never appears in a certificate is not here, and we hold no zone file for .io. The registry’s own figure is the count; this one says how much of it we can see name by name.

Oct 2025: 1,142,688 — third-party estimate; the registry has not published that month yet.

how many names, month by month

to
Oct 2025 to Oct 2025

Names under management at month end, as the registry reported it. Dashed months are third-party estimates.

everything else