~/dnsniffer/tlds/co.jp·rank #81
▸ How many .co.jp domains are registered?
327,005
active .co.jp domains as of .
# rank #81 of all TLDs ▲ 1 in 30d# all records held: 333,090# snapshots: 60
~/tlds/co.jp/history·active domains
327,005
active .co.jp domains on 2026-10-15 · ▲ +310,328 (+1,860.81%) 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
▲ +1.99%
+6,387 domains
90 days
▲ +2.32%
+7,406 domains
1 year
▲ +12.48%
+36,280 domains
# faq
- ? How many .co.jp domains are registered?
- There are 327,005 active .co.jp domains as of October 15, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
- ? Is .co.jp growing or shrinking?
- .co.jp has grown by 12.48% over the last year (+36,280 domains).
- ? Where does the .co.jp 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.jp 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.