Check Domain

Check Domain is a straightforward lookup tool for seeing whether a domain is available, and for viewing public WHOIS and RDAP records when they exist. It runs searches on demand and doesn’t require an account or keep a search history.

You can search a word or a full domain and select which extensions to include, such as .com, .net, .org, .io and .ai. Results show each registry’s response so you can open an entry to see more details for available or registered names.

• Availability checked against registry-backed RDAP where supported, not just DNS
• Displays public registrar, important dates, nameserver and record source when available
• Shows registration and renewal prices side by side for easier long-term cost comparison

Check Domain does not register names or guarantee availability. Always confirm final availability and price at the registrar checkout. Official site: https://www.checkdomain.ai/