What is a bulk domain checker?
Quick answerA bulk domain checker tests many domain names for availability in one go. Paste a list of names or full domains, choose the extensions to try, and get a table of available and taken results you can filter, copy or export, instead of searching each name one by one.
Built for brainstorms and portfolios
Paste a brainstorm list, a spreadsheet column or a list of expiring domains. Results come back in parallel, and you can hide taken names, copy the available ones or download everything as CSV.
For idea generation instead of checking, try the domain name generator. For one name across every extension, use the domain name search.
How to use the bulk checker
- Paste names or domains, one per line (commas and spaces also work).
- Choose which extensions to try for bare names, e.g. .com only, or nine popular TLDs.
- Click Check all. Results fill in live as each lookup returns.
- Tick Available only, then copy the list or download the CSV.
Smart ways to use it
- Shortlist testing: paste your 20 favourite brainstorm names and see which .com options survive.
- Defensive registration: check typos and plurals of your brand so competitors or squatters can't grab them.
- Portfolio research: check lists of dictionary words or two-word combos before an auction or drop.
- Extension sweep: check one name across nine TLDs to see where you have room to grow.
Bulk domain checker FAQ
How many domains can I check at once?
Up to 500 per batch. Run as many batches as you like.
Can I export the results?
Yes. Click Download CSV for every domain and its status, or Copy available to grab just the free ones.
Is the bulk checker accurate?
Each domain is checked via DNS, and available names are confirmed against the registry (RDAP) where the registry supports it.