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Bulk WHOIS Lookup

Look up registration status for a whole list of domains at once — registered, available, registrar and expiry, side by side.

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How to use this tool

Paste your list

Drop a list of domains into the box — one per line, or separated by spaces or commas.

Look them all up

ns6 runs a live WHOIS/RDAP query for each domain in parallel, so a long list comes back in seconds.

Scan the results

Each domain is marked registered, available or errored, with its registrar and expiry date where it exists.

Grab the free ones

Click any available name to jump to search and register it, with free WHOIS privacy and DNS included.

Checking domains one at a time is slow when you’re researching a portfolio, clearing a brand across several names, or watching a batch of registrations expire. A bulk WHOIS lookup takes a whole list at once and tells you, for each name, whether it’s registered or available and — where it exists — the registrar and expiry date.

ns6 runs the queries live over RDAP, the modern WHOIS protocol, and in parallel, so a long list returns in seconds. Available names link straight to search so you can register the ones you want, each with free WHOIS privacy and DNS.

Frequently asked questions

It runs a WHOIS/RDAP query for a whole list of domains at once and shows, for each, whether it’s registered or available, plus registrar and expiry where it exists.

You can paste a long list; ns6 checks up to fifteen at a time so the results come back quickly. Run it again for the next batch.

One domain per line, or separated by spaces or commas — all three work. Include the extension, for example example.com.

Yes — any name with no registration record is marked available and links straight to search so you can register it.

Completely free and no signup required, like all the ns6 tools.

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