Domainr
Domainr is a registrar for its own group's domains based in the United States, founded in 2008. It is ICANN-accredited, with IANA ID 2484.
| Website | domainr.com |
|---|
API access
| Status | Blocked |
|---|---|
| API | Accreditation supports the Domainr availability API (owned by Fastly); it does not sell registrations to the public. |
| Notes | Fastly acquired Domainr in 2023. |
About Domainr
| Headquarters | United States |
|---|---|
| Founded | 2008 |
| Part of | Fastly |
| Type | Registers domains for its own group |
| ICANN accreditation | IANA ID 2484 |
| Site languages | English |
| RDAP server | https://api.domainr.com/rdap/ |
Domainr in Lemon Domains
Bring Domainr domains into Lemon Domains by pasting the domain list or uploading a CSV export, next to the domains from every other registrar you use. Lemon Domains tracks expiry dates and lets your AI assistant answer questions about them through MCP.
Other registrars in United States
| Integrated | |
| Integrated | |
| Integrated | |
| Integrated | |
| Blocked | |
| Blocked |
Sources: the ICANN list of accredited registrars and the IANA registrar ID registry (refreshed 2026-10-24), and Domainr's own site and documentation (reviewed 2026-10-24). This page is also available as Markdown and JSON. Something out of date? Tell us.
Frequently asked questions
Is Domainr ICANN-accredited?
Yes. Domainr is on the ICANN list of accredited registrars, so it can register generic extensions such as .com directly with the registries.
What is Domainr's IANA ID?
2484. The IANA registrar ID appears in the registrar field of a domain's public record, so it shows which registrar a domain is with.
What other names does Domainr operate under?
Its accreditations are also held as Domain Research, LLC. Domains registered through any of them can show those names as the registrar.
Does Domainr have an API?
Not one that account holders can use. Accreditation supports the Domainr availability API (owned by Fastly); it does not sell registrations to the public. Domainr domains come into Lemon Domains by paste or CSV import instead.