.rio
660 domains as of 19 Sep 2026
Registry details
From the IANA Root Zone Database and RDAP bootstrap.
- Registry operator
- Empresa Municipal de Informática SA - IPLANRIO
- Technical backend
- NIC.br via ns suffix
- Delegated
- 22 May 2014
- Nameservers
- a.dns.br, b.dns.br, c.dns.br, d.dns.br, e.dns.br, f.dns.br
- RDAP
- https://rdap.gtlds.nic.br
- Zone data
- CZDS access approved — counted daily
Registrar share
individual · combinedSource: ICANN monthly registry reports
Related accreditations combined into corporate families. This grouping is our inference, not ICANN's.
| Key-Systems | 395 | 58.17% |
|---|---|---|
| One.com A/S | 116 | 17.08% |
| Reserved for billable transactions where Registry Operator acts as Registrar | 91 | 13.4% |
| Nom-iq Ltd. dba COM LAUDE | 31 | 4.57% |
| Lexsynergy Limited | 16 | 2.36% |
| MarkMonitor Inc. | 11 | 1.62% |
| 101domain GRS Limited | 9 | 1.33% |
| Hosting Concepts B.V. d/b/a Registrar.eu | 9 | 1.33% |
| Reserved for non-billable transactions where Registry Operator acts as Registrar | 1 | 0.15% |
679 attributed to registrars in May 2026, against 660 in 19 Sep 2026’s zone — the zone is 19 smaller. The two are months apart, and a registry's own count also includes registrations that are not delegated in the zone. Why there are two clocks.
Domains by month, May 2023 – May 2026
Source: ICANN monthly registry reports
From ICANN's monthly registry reports — the registry's own count, summed across registrars. This is the long history: it reaches back to delegation, where the daily series below can only start when this site began collecting zone files.
| Month | Domains | Change | Registrars | Net adds | Deletes |
|---|---|---|---|---|---|
| May 2026 | 679 | ▲ +1 | 9 | 6 | 0 |
| Apr 2026 | 678 | ▲ +5 | 9 | 0 | 1 |
| Mar 2026 | 673 | ▲ +4 | 9 | 2 | 1 |
| Feb 2026 | 669 | ▼ -18 | 9 | 1 | 0 |
| Jan 2026 | 687 | ▼ -14 | 9 | 1 | 1 |
| Dec 2025 | 701 | ▼ -8 | 9 | 2 | 1 |
| Nov 2025 | 709 | ▼ -2 | 9 | 2 | 0 |
| Oct 2025 | 711 | ▼ -2 | 9 | 0 | 1 |
| Sep 2025 | 713 | 0 | 9 | 0 | 4 |
| Aug 2025 | 713 | ▲ +1 | 9 | 1 | 0 |
| Jul 2025 | 712 | ▲ +4 | 9 | 1 | 0 |
| Jun 2025 | 708 | ▼ -10 | 9 | 2 | 1 |
| May 2025 | 718 | ▲ +2 | 9 | 0 | 0 |
| Apr 2025 | 716 | ▼ -1 | 9 | 0 | 0 |
| Mar 2025 | 717 | ▼ -3 | 9 | 2 | 1 |
| Feb 2025 | 720 | ▲ +1 | 9 | 0 | 1 |
| Jan 2025 | 719 | ▼ -3 | 9 | 0 | 2 |
| Dec 2024 | 722 | ▼ -11 | 9 | 0 | 1 |
| Nov 2024 | 733 | 0 | 9 | 1 | 1 |
| Oct 2024 | 733 | ▼ -13 | 9 | 2 | 1 |
| Sep 2024 | 746 | ▲ +3 | 9 | 0 | 1 |
| Aug 2024 | 743 | 0 | 9 | 1 | 1 |
| Jul 2024 | 743 | ▲ +3 | 9 | 0 | 0 |
| Jun 2024 | 740 | ▲ +4 | 9 | 4 | 3 |
| May 2024 | 736 | ▼ -1 | 9 | 1 | 0 |
| Apr 2024 | 737 | ▲ +3 | 9 | 0 | 0 |
| Mar 2024 | 734 | ▲ +5 | 9 | 3 | 0 |
| Feb 2024 | 729 | ▲ +2 | 9 | 1 | 1 |
| Jan 2024 | 727 | ▼ -9 | 9 | 1 | 1 |
| Dec 2023 | 736 | ▼ -13 | 9 | 0 | 1 |
| Nov 2023 | 749 | ▼ -1 | 9 | 0 | 1 |
| Oct 2023 | 750 | ▼ -4 | 9 | 4 | 3 |
| Sep 2023 | 754 | ▼ -2 | 9 | 1 | 1 |
| Aug 2023 | 756 | ▲ +4 | 9 | 1 | 2 |
| Jul 2023 | 752 | ▼ -1 | 9 | 1 | 0 |
| Jun 2023 | 753 | 0 | 9 | 1 | 1 |
| May 2023 | 753 | ▲ +1 | 9 | 2 | 8 |
Showing all 37 months in this range. Show the latest 6.
Domains by day, 12 Aug 2026 – 19 Sep 2026
Source: Daily zone files
Counted from daily zone files. Names with at least one NS record or a DS record.
Daily change
Source: Daily zone files
Day-over-day difference of the zone's name list, over the same window as the chart above.
- Added
- Dropped
Registrars
| Registrar | Domains | Share | Net adds | Transfers in | Deletes |
|---|---|---|---|---|---|
| Key-Systems GmbH | 395 | ▲ +6 | 0 | 0 | |
| One.com A/S | 116 | 0 | 0 | 0 | |
| Reserved for billable transactions where Registry Operator acts as Registrar | 91 | 0 | 0 | 0 | |
| Nom-iq Ltd. dba COM LAUDE | 31 | 0 | 0 | 0 | |
| Lexsynergy Limited | 16 | 0 | 0 | 0 | |
| MarkMonitor Inc. | 11 | 0 | 0 | 0 | |
| 101domain GRS Limited | 9 | 0 | 0 | 0 | |
| Hosting Concepts B.V. d/b/a Registrar.eu | 9 | 0 | 0 | 0 | |
| Reserved for non-billable transactions where Registry Operator acts as Registrar | 1 | 0 | 0 | 0 |
Registry activity
Source: ICANN monthly registry reports
Query volumes and EPP operations reported monthly by the registry. The only public signal of how much a TLD is actually resolved rather than merely registered.
| Month | Operational registrars | DNS queries (UDP) | RDAP queries | Creates | Deletes | Renews | Transfers approved | Rejected |
|---|---|---|---|---|---|---|---|---|
| Jan 2018 | 13 | 50.32M | 0 | 27 | 0 | 19 | – | – |
| Dec 2017 | 13 | 47.75M | 0 | 10 | 0 | 34 | – | – |
| Nov 2017 | 13 | 49.71M | 0 | 11 | 0 | 58 | – | – |
| Oct 2017 | 13 | 48.62M | 0 | 22 | 0 | 113 | – | – |
| Sep 2017 | 13 | 50.97M | 0 | 15 | 0 | 121 | – | – |
| Aug 2017 | 13 | 61.72M | 0 | 21 | 0 | 111 | – | – |
| Jul 2017 | 13 | 42.32M | 0 | 19 | 0 | 15 | – | – |
| Jun 2017 | 13 | 48.30M | 0 | 23 | 0 | 14 | – | – |
| May 2017 | 13 | 57.45M | 0 | 11 | 0 | 11 | – | – |
| Apr 2017 | 13 | 52.52M | 0 | 13 | 0 | 13 | – | – |
| Mar 2017 | 13 | 53.37M | 0 | 17 | 0 | 16 | – | – |
| Feb 2017 | 13 | 47.89M | 0 | 21 | 0 | 17 | – | – |
| Jan 2017 | 13 | 60.05M | 0 | 22 | 0 | 16 | – | – |
| Dec 2016 | 13 | 55.74M | 0 | 24 | 0 | 27 | – | – |
| Nov 2016 | 13 | 50.16M | 0 | 33 | 0 | 103 | – | – |
| Oct 2016 | 13 | 49.75M | 0 | 31 | 0 | 113 | – | – |
| Sep 2016 | 13 | 48.47M | 0 | 42 | 0 | 317 | – | – |
| Aug 2016 | 13 | 52.35M | 0 | 60 | 0 | 104 | – | – |
| Jul 2016 | 13 | 18.46M | 0 | 51 | 0 | 15 | – | – |
| Jun 2016 | 13 | 36.46M | 0 | 49 | 0 | 0 | – | – |
| May 2016 | 13 | 45.00M | 0 | 25 | 0 | 44 | – | – |
| Apr 2016 | 13 | 28.07M | 0 | 52 | 0 | 1 | – | – |
| Mar 2016 | 13 | 2.57M | 0 | 67 | 0 | 1 | – | – |
| Feb 2016 | 13 | 35.82M | 0 | 37 | 0 | 4 | – | – |
| Jan 2016 | 13 | 42.28M | 0 | 72 | 0 | 0 | – | – |
| Dec 2015 | 13 | 38.67M | 0 | 100 | 0 | 2 | – | – |
| Nov 2015 | 13 | 30.09M | 0 | 365 | 0 | 11 | – | – |
| Oct 2015 | 13 | 29.54M | 0 | 252 | 2 | 1 | – | – |
| Sep 2015 | 13 | 26.28M | 0 | 481 | 0 | 5 | – | – |
| Aug 2015 | 10 | 27.12M | 0 | 0 | 0 | 1 | – | – |
| Jul 2015 | 10 | 606.72M | 0 | 1 | 0 | 0 | – | – |
| Jun 2015 | 10 | 26.51M | 0 | 45 | 0 | 0 | – | – |
| May 2015 | 10 | 26.70M | 0 | 0 | 0 | 1 | – | – |
| Apr 2015 | 10 | 27.12M | 0 | 0 | 0 | 0 | – | – |
| Mar 2015 | 10 | 26.99M | 0 | 1 | 0 | 0 | – | – |
| Feb 2015 | 10 | 27.78M | 0 | 1 | 0 | 0 | – | – |
| Jan 2015 | 10 | 32.58M | 0 | 2 | 0 | 0 | – | – |
| Dec 2014 | 10 | 34.69M | 0 | 12 | 0 | 0 | – | – |
| Nov 2014 | 3 | 23.51M | 0 | 0 | 0 | 0 | – | – |
| Oct 2014 | 3 | 23.76M | 0 | 0 | 0 | 0 | – | – |
| Sep 2014 | 3 | 23.26M | 0 | 0 | 0 | 0 | – | – |
| Aug 2014 | 3 | 19.53M | 0 | 1 | 0 | 0 | – | – |
| Jul 2014 | 3 | 14.19M | 0 | 0 | 0 | 0 | – | – |
| Jun 2014 | 3 | 17.99M | 0 | 0 | 0 | 0 | – | – |
| May 2014 | 3 | 836.12k | 0 | 1 | 0 | 0 | – | – |
Data currency. Domain counts on this page are from zone files dated and refresh daily. Registrar figures are from ICANN's monthly registry reports for May 2026, which ICANN publishes about three months in arrears; zone files contain no registrar information, so no fresher source exists. Full detail on methodology and live pipeline status.