Bolster
Bolster is a corporate domain registrar based in the United States. It is ICANN-accredited, with IANA ID 4022.
| Website | bolster.ai |
|---|
API access
| Status | Blocked |
|---|---|
| API | Brand-protection and takedown company; accreditation is not a retail registrar. |
About Bolster
| Headquarters | United States |
|---|---|
| Type | Corporate registrar for brands |
| ICANN accreditation | IANA ID 4022 |
| Site languages | English |
| RDAP server | https://rdap.bolster.ai/ |
Bolster in Lemon Domains
Bring Bolster 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 Bolster'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 Something out of date?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 Bolster ICANN-accredited?
Yes. Bolster is on the ICANN list of accredited registrars, so it can register generic extensions such as .com directly with the registries.
What is Bolster's IANA ID?
4022. The IANA registrar ID appears in the registrar field of a domain's public record, so it shows which registrar a domain is with.
Does Bolster have an API?
Not one that account holders can use. Brand-protection and takedown company; accreditation is not a retail registrar. Bolster domains come into Lemon Domains by paste or CSV import instead.