~/dnsniffer/tlds/co.tz·rank #282
▸ How many .co.tz domains are registered?
29,051
active .co.tz domains as of .
# rank #282 of all TLDs ▲ 9 in 30d# all records held: 32,083# snapshots: 59
~/tlds/co.tz/history·active domains
29,051
active .co.tz domains on 2026-10-14 · ▲ +28,935 (+24,943.97%) 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
▲ +5.76%
+1,582 domains
90 days
▲ +7.46%
+2,016 domains
1 year
▲ +55.04%
+10,313 domains
# faq
- ? How many .co.tz domains are registered?
- There are 29,051 active .co.tz domains as of October 14, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
- ? Is .co.tz growing or shrinking?
- .co.tz has grown by 55.04% over the last year (+10,313 domains).
- ? Where does the .co.tz 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.tz 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.