Check up to 20 domains for availability at once — parallel lookup, instant results.
100% free · No login · Up to 20 domains per check
When brainstorming brand names or building a domain portfolio, checking domains one at a time is slow. The bulk checker queries all your domains in parallel — up to 20 at once — and returns a clear available/taken/unknown summary in seconds.
Results include a running total of how many are available vs. taken, so you can quickly filter your shortlist.
Up to 20 domains per query. Enter one domain per line in the text area, then click Run. All domains are checked in parallel for speed.
One domain per line, e.g. myapp.com on the first line, myapp.io on the second, etc. Include the TLD — the tool does not guess extensions.
All 20 domains are queried in parallel using concurrent RDAP requests. A full 20-domain check typically completes in under 5 seconds.
Yes — completely free, no account required. There is a rate limit per hour per IP to ensure fair use.