~/dnsniffer/tlds/courses·rank #273
▸ How many .courses domains are registered?
30,861
active .courses domains as of .
# rank #273 of all TLDs ▲ 2 in 30d# all records held: 32,934# snapshots: 60
~/tlds/courses/history·active domains
30,861
active .courses domains on 2026-10-15 · ▲ +28,059 (+1,001.39%) 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
▲ +5.16%
+1,515 domains
90 days
▲ +68.65%
+12,562 domains
1 year
▲ +918.85%
+27,832 domains
# faq
- ? How many .courses domains are registered?
- There are 30,861 active .courses domains as of October 15, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
- ? Is .courses growing or shrinking?
- .courses has grown by 918.85% over the last year (+27,832 domains).
- ? Where does the .courses 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 .courses 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.