~/dnsniffer/tlds/k12.ia.us·rank #1,601
▸ How many .k12.ia.us domains are registered?
159
active .k12.ia.us domains as of .
# rank #1,601 of all TLDs# all records held: 172# snapshots: 20
~/tlds/k12.ia.us/history·active domains
159
active .k12.ia.us domains on 2026-09-05 · ▲ +144 (+960.00%) 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
▼ -1.24%
-2 domains
90 days
▼ -1.24%
-2 domains
1 year
▼ -0.63%
-1 domains
# faq
- ? How many .k12.ia.us domains are registered?
- There are 159 active .k12.ia.us domains as of September 5, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
- ? Is .k12.ia.us growing or shrinking?
- .k12.ia.us has shrunk by 0.63% over the last year (-1 domains).
- ? Where does the .k12.ia.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.ia.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.