~/dnsniffer/tlds/co.ao·rank #710
▸ How many .co.ao domains are registered?
3,563
active .co.ao domains as of .
# rank #710 of all TLDs ▼ 1 in 30d# all records held: 3,823# snapshots: 19
~/tlds/co.ao/history·active domains
3,563
active .co.ao domains on 2026-09-04 · ▲ +3,519 (+7,997.73%) since 2025-06-30
# y-axis starts at 0, not zero - domain counts move by fractions of a percent a day. Dashed segments are estimated: reconstructed from certificate first-seen dates before daily snapshots began, not measured on the day.
# change over time
30 days
▼ -1.95%
-71 domains
90 days
▲ +2.83%
+98 domains
1 year
▲ +33.50%
+894 domains
# faq
- ? How many .co.ao domains are registered?
- There are 3,563 active .co.ao domains as of September 4, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
- ? Is .co.ao growing or shrinking?
- .co.ao has grown by 33.50% over the last year (+894 domains).
- ? Where does the .co.ao domain count come from?
- We ingest ICANN CZDS zone files and Certificate Transparency logs continuously and snapshot the per-TLD count once a day. A .co.ao domain is counted as active if it appeared in a zone file in the last 2 days, or - where no zone file is published - if a certificate was issued for it in the last 12 months.