The Domain Availability Checker is a tool that helps determine if a domain name is available for registration. If you are starting a new website, launching a brand, or securing an online identity, checking domain availability is an important step.
Enter a domain name (e.g., "example" or "example.com") to check its availability.
This tool uses RDAP (Registration Data Access Protocol) to check domain registration records. When you enter a domain name, the tool queries official databases to check if the domain is registered or available for purchase. However, RDAP implementations vary across different registries, and sometimes a domain may appear available due to incomplete data. To improve accuracy, if RDAP returns a 404 status, an additional check is performed to see if the domain resolves to any IP address. If the domain resolves, it may still be registered despite RDAP indicating otherwise.
This tool checks domain availability against the following top-level domains (TLDs) when no TLD is entered:
If a domain name is entered with a specific TLD (e.g., "denic.de"), the tool will attempt to check availability for that exact domain.
TLD-List.com is a well-known service that compares domain prices and checks domain availability across different TLDs. However, the site is often unavailable. This domain checker provides an alternative for users who primarily used TLD-List.com to check domain availability. With RDAP-based queries, users can determine domain registration status efficiently without relying on external registrars.