A practical domain lookup tool for checking availability, inspecting public domain records, and comparing registration and renewal prices.
Choosing a domain usually involves more than checking whether one address is available. You may also want to compare several extensions, inspect the public record, and understand what the name will cost after the first year.
Check Domain puts those signals in one short research workflow so you can compare a name before deciding where to register it.
- Search a brand idea or a complete domain name.
- Check several selected extensions in one pass.
- Review registry-backed availability results from RDAP where supported.
- Inspect public WHOIS and RDAP details when they are available.
- Compare registration and renewal prices before choosing a registrar.
- Enter a brand idea or a complete domain.
- Choose the top-level domains for the first search.
- Compare the returned availability and extension results.
- Open a result to review its record and registrar pricing.
- Confirm the final availability at the registrar checkout before registering.
Check Domain does not register domains or guarantee that a name will remain available. Availability is authoritative at the registrar checkout, and the amount of public record information depends on the domain and registry.
Searches are processed on demand. The service does not require an account or save a search history.
Visit Check Domain to start a domain search.