SIDN registry backend statistics
Extensions, registrations, renewals, registrars and infrastructure from Registry Explorer
Backend provider
SIDN
#12 of 186 backend providers · 1.3% of all registered names
- Serves
- SIDN 1 · Gemeente Amsterdam 1 · SETAR 1 · +1 more
- Registered names
- 5,204,205
- Extensions
- 4 2 new gTLDs · 2 country codes
- New, past 7 days
- 28
- Renewal rate
- 80.1% ICANN, June 2026 · −5.6% names YoY
- Net change, 7 days
- −6
- Median value
- —
- Names over $1k
- 12.5%
- For sale / parked
- 33.9% / 0.0%
SIDN runs the registry systems for 4 domain extensions with 5,204,205 registered names as of October 7, 2026, 1.3% of every name Toyroom tracks. It ranks 12th of 186 backend providers by registered names. The largest are .nl, .amsterdam and .aw.
Source: Toyroom zone index, daily registration feed, CZDS zone files and ICANN registry reports, October 7, 2026.
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Questions about SIDN
How many domains run on SIDN?
5,204,205 registered names across 4 extensions as of October 7, 2026. The largest are .nl, .amsterdam and .aw.
What is the renewal rate at SIDN?
About 80.1% of the names that came up for renewal in June 2026 were renewed, from ICANN monthly registry reports for its gTLDs. Names under management changed -5.6% over the year.
Which registries use SIDN?
4 registries. The largest by names: SIDN, Gemeente Amsterdam, SETAR.
Backends of a similar size
by registered names| Backend | Rank | Names |
|---|---|---|
| Coordination Center for TLD RU | #9 | 6,852,300 |
| ZDNS | #10 | 6,599,892 |
| NIC.br | #11 | 5,514,004 |
| SIDN | #12 | 5,204,205 |
| GMO Registry | #13 | 4,544,418 |
| AFNIC | #14 | 4,269,099 |
| CIRA | #15 | 4,252,209 |