Stats
New gTLD · delegated 2014-05 · Empresa Municipal de Informática SA - IPLANRIO

.rio TLD stats

.rio held about 650 names in August 2026, by a third-party estimate; its zone file on 23 Oct 2026 carried 656.

650
names, August 2026, third-party estimate
656
in the zone file, 23 Oct 2026

Names since general availability, September 2015

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 23 Oct 2026, a different count taken on one night.

Year by year since launch, as the registry reported it

In its first year, to August 2016, 5 registrars held 10 or more .rio names and the largest held 72%; by its tenth, to August 2025, 7 did and the largest held 59%.

  1. 1 · to Aug 20161,654572%
  2. 2 · to Aug 20171,457762%
  3. 3 · to Aug 20181,148660%
  4. 4 · to Aug 2019927560%
  5. 5 · to Aug 2020918463%
  6. 6 · to Aug 2021873464%
  7. 7 · to Aug 2022810664%
  8. 8 · to Aug 2023756763%
  9. 9 · to Aug 2024743660%
  10. 10 · to Aug 2025713759%

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 2026

Key-Systems GmbH held 58.2% of .rio names in May 2026; the largest five together held 83.8%.

Shares add to 100%. From the registry's report for May 2026.

last night, in detail

Oct 23, 2026
What moved · on Oct 23, 2026
entered the zone
0
left it
−2
changed nameservers
0
Net
−2
Sep 16, 2026 to Oct 23, 2026 · axis starts at the data, not at zero
How the zone is used · 656 names
  • Listed for salemarketplace nameservers10.2%
  • Parkedad-parking or expiry nameservers00.0%
  • In usehosting, registrar or DNS nameservers33050.3%
  • Not classifiednameservers we can’t name32549.5%

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: 0.0%. List 2026.09.7+psl4b673689.

Counted from the registry’s own zone file on the night of Oct 23, 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.

Aug 2026: 650 — third-party estimate; the registry has not published that month yet.

how many names, month by month

to
Aug 2026 to Aug 2026

Names under management at month end, as the registry reported it. Dashed months are third-party estimates. Sunrise Dec 2014 to Jan 2015; general registration Sep 2015.

everything else