Domain Name Checker

What the domain checker does

This tool tells you, in real time, whether a domain name is free to register or already taken. You can enter a bare keyword like mystartup and we check it across many popular extensions at once, or paste a full domain like mystartup.io to check that exact one. Every answer is pulled from RDAP, the modern replacement for legacy WHOIS, which means you get structured, authoritative data straight from the registry responsible for each TLD.

How to use it

Getting an answer takes seconds.

• Enter a name idea or a complete domain in the search box.
• Let the checker query each TLD in parallel and read the availability status.
• Look for the green available label to see which extensions are still open.
• Note anything marked registered, then try variations or alternate endings.

Because we query TLDs together, you can compare a whole family of options, such as .com, .co, .io, .id, .tech and .ai, without running separate searches.

Why it matters

Your domain is the front door to everything you build online. Checking availability early saves you from falling in love with a name you cannot actually own, and it helps you decide fast when a good one is still free. Registrations move quickly, so confirming with live registry data rather than a guess protects you from surprises at checkout. At Digzy Technology, a software studio in Bali, Indonesia, we run this exact check at the start of most website and app projects, because getting the name right up front makes branding, email and marketing far simpler later. Use it to brainstorm, to lock in a launch name, or just to see what is out there before you commit.