~/dnsniffer/tlds/study·rank #250
▸ How many .study domains are registered?
35,617
active .study domains as of .
# rank #250 of all TLDs ▲ 64 in 30d# all records held: 38,118# snapshots: 60
~/tlds/study/history·active domains
35,617
active .study domains on 2026-10-15 · ▲ +33,128 (+1,330.98%) 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
▲ +50.57%
+11,963 domains
90 days
▲ +134.21%
+20,410 domains
1 year
▲ +1,197.05%
+32,871 domains
# faq
- ? How many .study domains are registered?
- There are 35,617 active .study domains as of October 15, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
- ? Is .study growing or shrinking?
- .study has grown by 1,197.05% over the last year (+32,871 domains).
- ? Where does the .study 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 .study 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.