~/dnsniffer/tlds/bio.br·rank #1,361
▸ How many .bio.br domains are registered?
271
active .bio.br domains as of .
# rank #1,361 of all TLDs ▲ 6 in 30d# all records held: 298# snapshots: 18
~/tlds/bio.br/history·active domains
271
active .bio.br domains on 2026-09-04 · ▲ +56 (+26.05%) since 2025-07-31
# y-axis starts at 208.04, 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
▼ -0.73%
-2 domains
90 days
▲ +1.88%
+5 domains
1 year
▲ +24.88%
+54 domains
# faq
- ? How many .bio.br domains are registered?
- There are 271 active .bio.br domains as of September 4, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
- ? Is .bio.br growing or shrinking?
- .bio.br has grown by 24.88% over the last year (+54 domains).
- ? Where does the .bio.br 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 .bio.br 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.