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▸ How many .ooo domains are registered?

16,028

active .ooo domains as of .

# rank #388 of all TLDs ▼ 12 in 30d# all records held: 47,656# snapshots: 58
search .ooo domains download the .ooo dataset
~/tlds/ooo/history·active domains
16,028
active .ooo domains on 2026-10-13 · ▲ +5,702 (+55.22%) since 2025-06-30
9.1K12.2K15.3K18.3K21.4K2025-06-30: 10,326 active2025-07-31: 14,873 active2025-08-31: 14,885 active2025-09-30: 14,886 active2025-10-31: 14,886 active2025-11-30: 14,886 active2025-12-31: 15,819 active2026-01-31: 16,559 active2026-02-28: 16,559 active2026-03-31: 16,559 active2026-04-30: 19,614 active2026-05-31: 19,818 active2026-06-30: 20,053 active2026-07-31: 20,218 active2026-08-31: 20,218 active2026-09-01: 20,053 active2026-09-02: 19,269 active2026-09-03: 18,106 active2026-09-04: 16,896 active2026-09-05: 16,019 active2026-09-06: 16,022 active2026-09-07: 16,000 active2026-09-08: 15,989 active2026-09-09: 15,992 active2026-09-10: 15,987 active2026-09-11: 15,992 active2026-09-12: 15,998 active2026-09-13: 15,999 active2026-09-14: 16,003 active2026-09-15: 16,010 active2026-09-16: 16,002 active2026-09-17: 16,002 active2026-09-18: 15,992 active2026-09-19: 16,000 active2026-09-20: 16,000 active2026-09-21: 16,003 active2026-09-22: 16,055 active2026-09-23: 16,074 active2026-09-24: 16,080 active2026-09-25: 16,073 active2026-09-26: 16,076 active2026-09-27: 16,057 active2026-09-28: 16,006 active2026-09-29: 15,999 active2026-09-30: 16,050 active2026-10-01: 16,055 active2026-10-02: 16,041 active2026-10-03: 16,042 active2026-10-04: 15,998 active2026-10-05: 15,986 active2026-10-06: 15,995 active2026-10-07: 16,050 active2026-10-08: 16,063 active2026-10-09: 16,059 active2026-10-10: 16,048 active2026-10-11: 16,042 active2026-10-12: 16,037 active2026-10-13: 16,028 active2025-06-302026-10-13

# y-axis starts at 9.1K, 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
▲ +0.18%
+29 domains
90 days
▼ -20.07%
-4,025 domains
1 year
▲ +7.67%
+1,142 domains
# faq
? How many .ooo domains are registered?
There are 16,028 active .ooo domains as of October 13, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
? Is .ooo growing or shrinking?
.ooo has grown by 7.67% over the last year (+1,142 domains).
? Where does the .ooo 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 .ooo 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.
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