~/dnsniffer/tlds/ac.cn·rank #759
$ dnsniffer count --tld ac.cn --active
▸ How many .ac.cn domains are registered?
2,879
active .ac.cn domains as of .
# rank #759 of all TLDs# all records held: 3,279# snapshots: 18
~/tlds/ac.cn/history·active domains
2,879
active .ac.cn domains on 2026-09-03 · ▲ +2,842 (+7,681.08%) 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
▼ -1.74%
-51 domains
90 days
▲ +21.07%
+501 domains
1 year
▲ +69.15%
+1,177 domains
# faq
- ? How many .ac.cn domains are registered?
- There are 2,879 active .ac.cn domains as of September 3, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
- ? Is .ac.cn growing or shrinking?
- .ac.cn has grown by 69.15% over the last year (+1,177 domains).
- ? Where does the .ac.cn 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 .ac.cn 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.