~/dnsniffer/tlds/id.au·rank #654
▸ How many .id.au domains are registered?
4,515
active .id.au domains as of .
# rank #654 of all TLDs ▲ 2 in 30d# all records held: 4,800# snapshots: 19
~/tlds/id.au/history·active domains
4,515
active .id.au domains on 2026-09-04 · ▲ +4,488 (+16,622.22%) 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
▼ -1.53%
-70 domains
90 days
▲ +0.02%
+1 domains
1 year
▲ +7.71%
+323 domains
# faq
- ? How many .id.au domains are registered?
- There are 4,515 active .id.au domains as of September 4, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
- ? Is .id.au growing or shrinking?
- .id.au has grown by 7.71% over the last year (+323 domains).
- ? Where does the .id.au 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 .id.au 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.