BestCert
BestCert is a domain registrar based in Singapore. It is ICANN-accredited, with IANA ID 4563.
| Website | bestcerts.com |
|---|
API access
| Status | Not reviewed |
|---|
API access for BestCert has not been checked yet.
About BestCert
| Headquarters | Singapore |
|---|---|
| Type | Retail registrar |
| ICANN accreditation | IANA ID 4563 |
| Site languages | English |
| RDAP server | https://bestcerts.com/rdap/ |
Domain extensions BestCert sells
Confirmed on its site: .sg.
BestCert in Lemon Domains
Bring BestCert 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 Singapore
| Blocked | |
| Blocked | |
| Not reviewed | |
| Not reviewed | |
| Not reviewed | |
| Not reviewed |
Sources: the ICANN list of accredited registrars and the IANA registrar ID registry (refreshed 2026-10-24), and BestCert'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 Something out of date?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 BestCert ICANN-accredited?
Yes. BestCert is on the ICANN list of accredited registrars, so it can register generic extensions such as .com directly with the registries.
What is BestCert's IANA ID?
4563. 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 BestCert operate under?
Its accreditations are also held as BestCert Pte. Ltd.. Domains registered through any of them can show those names as the registrar.