~/dnsniffer/tlds/fail·rank #644
▸ How many .fail domains are registered?
4,865
active .fail domains as of .
# rank #644 of all TLDs ▼ 2 in 30d# all records held: 6,192# snapshots: 61
~/tlds/fail/history·active domains
4,865
active .fail domains on 2026-10-16 · ▲ +1,010 (+26.20%) since 2025-06-30
# y-axis starts at 3.7K, 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
▲ +0.91%
+44 domains
90 days
▲ +2.33%
+111 domains
1 year
▲ +23.04%
+911 domains
# faq
- ? How many .fail domains are registered?
- There are 4,865 active .fail domains as of October 16, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
- ? Is .fail growing or shrinking?
- .fail has grown by 23.04% over the last year (+911 domains).
- ? Where does the .fail 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 .fail 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.