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Is there any way to query the public WHOIS like this:

Give me all registered domain names for this extension AND by this registrar:

whois ".ext" AND whois.registrar.ext

Of course I'm aiming at extension/registrar combination that will return no more then 20 results (Thanks to ICANN stats data).

Whois wildcard query

I say Reinstate Monica
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Lance Freeman
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1 Answers1

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First of all, there is not a single WHOIS database but rather many different WHOIS servers. Each WHOIS server usually provides data for one or more specific TLDs. Here's a rather comprehensive list of TLDs and the WHOIS server that handles each.

I'm not aware of a tool that can perform a WHOIS lookup and specify the Registrar as a criterion. You will likely need to create your own script to do that. This answer on StackOverflow may help you with that.

Be mindful that WHOIS servers use rate-limiting so you'll only be able to perform a relatively small number of lookups before you're throttled or blocked altogether.

I say Reinstate Monica
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  • Thank you for editing my question and posting an answer. I found something that is very close to what I want here: http://reversewhois.domaintools.com/ (Reverse Whois) Unfortunately price is too high for me. – Lance Freeman Dec 07 '18 at 20:47