~/dnsniffer/tlds/k12.pa.us·rank #1,621
▸ How many .k12.pa.us domains are registered?
151
active .k12.pa.us domains as of .
# rank #1,621 of all TLDs ▲ 5 in 30d# all records held: 164# snapshots: 19
~/tlds/k12.pa.us/history·active domains
151
active .k12.pa.us domains on 2026-09-04 · ▲ +116 (+331.43%) since 2025-06-30
# y-axis starts at 20.96, 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
▼ -0.66%
-1 domains
90 days
▼ -0.66%
-1 domains
1 year
▲ +0.00%
+0 domains
# faq
- ? How many .k12.pa.us domains are registered?
- There are 151 active .k12.pa.us domains as of September 4, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
- ? Is .k12.pa.us growing or shrinking?
- .k12.pa.us has grown by 0.00% over the last year (+0 domains).
- ? Where does the .k12.pa.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.pa.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.