.rio
659 domains as of 13 Aug 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 · combinedIndividual ICANN accreditations, matching the registry report line for line. 9 reported volume in this TLD.
| Key-Systems GmbH | 395 | 58.26% |
|---|---|---|
| One.com A/S | 118 | 17.4% |
| Reserved for billable transactions where Registry Operator acts as Registrar | 90 | 13.27% |
| Nom-iq Ltd. dba COM LAUDE | 31 | 4.57% |
| Lexsynergy Limited | 16 | 2.36% |
| MarkMonitor Inc. | 11 | 1.62% |
| 101domain GRS Limited | 10 | 1.47% |
| Hosting Concepts B.V. d/b/a Registrar.eu | 6 | 0.88% |
| Reserved for non-billable transactions where Registry Operator acts as Registrar | 1 | 0.15% |
Domains by month, 2024–present
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 |
|---|---|---|---|---|---|
| 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 | – | 9 | 4 | 3 |
Domains over time
Counted from daily zone files. Names with at least one NS record or a DS record.
Daily adds and drops
Day-over-day difference of the zone's name list.
- Added
- Dropped
Registrars
| Registrar | Domains | Share | Net adds | Transfers in | Deletes |
|---|---|---|---|---|---|
| Key-Systems GmbH | 395 | 0 | 0 | 1 | |
| One.com A/S | 118 | 0 | 0 | 0 | |
| Reserved for billable transactions where Registry Operator acts as Registrar | 90 | 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 | 10 | 0 | 0 | 0 | |
| Hosting Concepts B.V. d/b/a Registrar.eu | 6 | 0 | 0 | 0 | |
| Reserved for non-billable transactions where Registry Operator acts as Registrar | 1 | 0 | 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 April 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.