Stats
New gTLD · delegated 2014-06 · Identity Digital Domains Limited

.bio TLD stats

.bio held 51,961 names in May 2025, as Identity Digital Domains Limited reported to ICANN; its zone file on 13 Oct 2026 carried 72,309. 193 registrars held names in it that month; the largest, NameCheap, Inc., held 15.3%.

51,961
names, May 2025, registry-reported
72,309
in the zone file, 13 Oct 2026
193
registrars holding names

Names since general availability, August 2014

Names on the books at the end of each year since general availability, from the registry's monthly reports to ICANN, through May 2026. The marked point is the zone count of 13 Oct 2026, a different count taken on one night.

Year by year since launch, as the registry reported it

In its first year, to July 2015, 34 registrars held 10 or more .bio names and the largest held 22%; by its eleventh, to July 2025, 109 did and the largest held 16%.

  1. 1 · to Jul 201511,3453422%
  2. 2 · to Jul 201614,7394316%
  3. 3 · to Jul 201715,1254516%
  4. 4 · to Jul 201817,3305113%
  5. 5 · to Jul 201916,3425314%
  6. 6 · to Jul 202018,6416016%
  7. 7 · to Jul 202120,7996217%
  8. 8 · to Jul 202223,7726919%
  9. 9 · to Jul 202361,1507430%
  10. 10 · to Jul 202475,2218232%
  11. 11 · to Jul 202556,15510916%

Year 1 starts at general availability and each year is labelled by the month it ends. Registrars with 10 or more names and the largest registrar's share are read at that month. A year with fewer than nine monthly reports is left blank.

Who sells it

May 2025

NameCheap, Inc. held 15.3% of .bio names in May 2025; the largest five together held 51.6%.

Shares add to 100%. From the registry's report for May 2025.

2026 strings our model compared with it

When we scored the 2026 round, our model listed .bio among the closest 2012-round TLDs for 14 applied-for strings. No applicant made these comparisons; strong and moderate are how close it judged each match.

Cross-checkThe registry reported 51,961 names for May 2025; the zone on Oct 13, 2026 held 20,348 more. The two are counted differently and 17 months apart: a registered name that is not delegated never appears in the zone, and a zone file is read on one night, a report at a month's end.

last night, in detail

Oct 13, 2026
What moved · on Oct 13, 2026
entered the zone
+92
left it
−66
changed nameservers
58
Net
+26
Sep 16, 2026 to Oct 13, 2026 · axis starts at the data, not at zero
How the zone is used · 72,309 names
  • Listed for salemarketplace nameservers3,8775.4%
  • Parkedad-parking or expiry nameservers2,9024.0%
  • In usehosting, registrar or DNS nameservers61,23984.7%
  • Not classifiednameservers we can’t name4,2915.9%

Read from each name’s nameservers on the night shown. Listed and parked are counted separately.

How we classify
A name takes the row its nameservers match on our provider list. Verification nameservers sit beside a name’s other nameservers, so they overlap the rows above: 0.4%. List 2026.09.7+psl4b673689.

Counted from the registry’s own zone file on the night of Oct 13, 2026. A zone count is not domains under management: a registered name that is not delegated never appears in the zone, and a name on hold leaves the zone while it stays registered. The two numbers will not agree, and neither is wrong.

how many names, month by month

to
May 2025 to May 2025

Names under management at month end, as the registry reported it. Reported to ICANN monthly. Sunrise Jun 2014 to Aug 2014; general registration Aug 2014.

everything else