~/dnsniffer/tlds/onion·rank #1440
$ dnsniffer count --tld onion --active
▸ How many .onion domains are registered?
229
active .onion domains as of .
# rank #1440 of all TLDs# all records held: 231# snapshots: 15
~/tlds/onion/history·active domains
229
active onion domains on 2026-08-31 · ▲ +227 (+11350.00%) 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
▲ +0.00%
+0 domains
90 days
▲ +0.44%
+1 domains
1 year
▲ +57.93%
+84 domains
# faq
- ? How many .onion domains are registered?
- There are 229 active .onion domains as of August 31, 2026, according to DNSniffer's daily count of zone-file and certificate-transparency records.
- ? Is .onion growing or shrinking?
- .onion has grown by 57.93% over the last year (+84 domains).
- ? Where does the .onion 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 .onion 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.