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WhoisXML API
p/whoisxml-api
Domain, IP, and DNS data provider
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Anna Danilova
Reverse IP/DNS — DNS history data repository covering billions of DNS records
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Reverse IP/DNS is among the most comprehensive repositories of DNS history data, spanning 1.4 billion domains and subdomains and over 815 million IPv4 addresses. The data is available via a lookup tool, an API, or as a downloadable database updated daily.
Replies
Anna Ioanna
I like that the pricing plans are readily accessible for the API, although I did have to fill out a form to inquire about the downloadable database. But I think that the API version of this reverse DNS product fits well with the other penetration testing tools we’re currently using.
Andrew Ivanov
I tried Reverse IP/DNS Lookup without signing up to see how it works and what other domains share my IP address. And it returned all records! I had to complete some CAPTCHAs to see more results after the 600th domain, but I was able to copy them all.
Sarah
That’s a really massive DNS database you have. I just signed up for an account, and it says I have 500 free requests per month. I’m not sure if it’s enough for what I need, but I should be able to test out either the web interface or API version.