Unstoppable Domains
Unstoppable Domains is a domain registrar based in the United States, founded in 2018. It holds 11 ICANN accreditations. It has an API that account holders can use.
| Website | unstoppabledomains.com |
|---|
API access
| Status | Has an API |
|---|---|
| API | Has an API |
| Documentation | docs.unstoppabledomains.com |
| Notes | Users create an API key under Account Settings > Advanced; the User API and CLI can list owned domains. |
About Unstoppable Domains
| Headquarters | United States |
|---|---|
| Founded | 2018 |
| Type | Retail registrar |
| ICANN accreditation | 11 accreditations, listed below |
| Site languages | English |
| RDAP server | https://api.unstoppabledomains.com/rdap/ |
Unstoppable Domains in Lemon Domains
Bring Unstoppable Domains 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.
ICANN accreditations (11)
Each accreditation has its own IANA registrar ID and name. A domain registered through any of them can show that name as its registrar.
| IANA ID | Accredited name |
|---|---|
| 4326 | Unstoppable Domains Inc. |
| 4573 | UnstoppableUS1 LLC |
| 4574 | UnstoppableUS2 LLC |
| 4575 | UnstoppableUS3 LLC |
| 4576 | UnstoppableUS4 LLC |
| 4577 | UnstoppableUS5 LLC |
| 4578 | UnstoppableUS6 LLC |
| 4579 | UnstoppableUS7 LLC |
| 4580 | UnstoppableUS8 LLC |
| 4581 | UnstoppableUS9 LLC |
| 4582 | UnstoppableUS10 LLC |
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 Unstoppable Domains'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 Something out of date?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 Unstoppable Domains ICANN-accredited?
Yes. Unstoppable Domains is on the ICANN list of accredited registrars with 11 accreditations, so it can register generic extensions such as .com directly with the registries.
What is Unstoppable Domains's IANA ID?
Unstoppable Domains has 11 IANA registrar IDs, one per accreditation: 4326, 4573, 4574, 4575, 4576, 4577, 4578, 4579, 4580, 4581 and 1 more, all listed on this page.
What other names does Unstoppable Domains operate under?
Its accreditations are also held as UnstoppableUS1 LLC, UnstoppableUS2 LLC, UnstoppableUS3 LLC, UnstoppableUS4 LLC and UnstoppableUS5 LLC and 5 more. Domains registered through any of them can show those names as the registrar.
Does Unstoppable Domains have an API?
Yes. Unstoppable Domains offers an API to account holders. Users create an API key under Account Settings > Advanced; the User API and CLI can list owned domains. Unstoppable Domains domains come into Lemon Domains by paste or CSV import.