~/dnsniffer/tlds/k12.ct.us·rank #2,331
▸ How many .k12.ct.us domains are registered?
43
active .k12.ct.us domains as of .
# rank #2,331 of all TLDs ▲ 1 in 30d# all records held: 45# snapshots: 19
~/tlds/k12.ct.us/history·active domains
43
active .k12.ct.us domains on 2026-09-04 · ▲ +29 (+207.14%) since 2025-06-30
# y-axis starts at 10.4, 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
▼ -2.27%
-1 domains
90 days
▼ -2.27%
-1 domains
1 year
▼ -2.27%
-1 domains
# faq
- ? How many .k12.ct.us domains are registered?
- There are 43 active .k12.ct.us domains as of September 4, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
- ? Is .k12.ct.us growing or shrinking?
- .k12.ct.us has shrunk by 2.27% over the last year (-1 domains).
- ? Where does the .k12.ct.us 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 .k12.ct.us 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.