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▸ How many .blue domains are registered?

16,745

active .blue domains as of .

# rank #381 of all TLDs ▼ 11 in 30d# all records held: 24,743# snapshots: 61
search .blue domains download the .blue dataset
~/tlds/blue/history·active domains
16,745
active .blue domains on 2026-10-16 · ▲ +3,730 (+28.66%) since 2025-06-30
12.6K13.7K14.9K16.1K17.3K2025-06-30: 13,015 active2025-07-31: 13,489 active2025-08-31: 13,504 active2025-09-30: 13,504 active2025-10-31: 13,504 active2025-11-30: 13,504 active2025-12-31: 13,979 active2026-01-31: 14,296 active2026-02-28: 14,296 active2026-03-31: 14,296 active2026-04-30: 15,998 active2026-05-31: 16,261 active2026-06-30: 16,524 active2026-07-31: 16,845 active2026-08-31: 16,844 active2026-09-01: 16,814 active2026-09-02: 16,757 active2026-09-03: 16,696 active2026-09-04: 16,683 active2026-09-05: 16,660 active2026-09-06: 16,644 active2026-09-07: 16,636 active2026-09-08: 16,637 active2026-09-09: 16,638 active2026-09-10: 16,650 active2026-09-11: 16,657 active2026-09-12: 16,650 active2026-09-13: 16,651 active2026-09-14: 16,660 active2026-09-15: 16,665 active2026-09-16: 16,661 active2026-09-17: 16,679 active2026-09-18: 16,654 active2026-09-19: 16,666 active2026-09-20: 16,673 active2026-09-21: 16,666 active2026-09-22: 16,666 active2026-09-23: 16,680 active2026-09-24: 16,708 active2026-09-25: 16,714 active2026-09-26: 16,701 active2026-09-27: 16,712 active2026-09-28: 16,726 active2026-09-29: 16,707 active2026-09-30: 16,725 active2026-10-01: 16,705 active2026-10-02: 16,694 active2026-10-03: 16,693 active2026-10-04: 16,708 active2026-10-05: 16,717 active2026-10-06: 16,731 active2026-10-07: 16,703 active2026-10-08: 16,718 active2026-10-09: 16,724 active2026-10-10: 16,712 active2026-10-11: 16,729 active2026-10-12: 16,721 active2026-10-13: 16,736 active2026-10-14: 16,744 active2026-10-15: 16,754 active2026-10-16: 16,745 active2025-06-302026-10-16

# y-axis starts at 12.6K, 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
▲ +0.50%
+84 domains
90 days
▲ +1.34%
+221 domains
1 year
▲ +24.00%
+3,241 domains
# faq
? How many .blue domains are registered?
There are 16,745 active .blue domains as of October 16, 2026, according to DNSniffer’s daily count of zone-file and certificate-transparency records.
? Is .blue growing or shrinking?
.blue has grown by 24.00% over the last year (+3,241 domains).
? Where does the .blue 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 .blue 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.
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