[graysonk]

Hmm is there a technical write up of how you are pulling this data?

I tried one of our companies for fun and it’s only pulling 1.4million records in one place and then 65,000 in another. Doesn’t seem to have all our nameservers or relays either.

[jsjohnst]

Based on the supported TLDs, I’m guessing they are pulling down the root zone tables from Verisign GRS. Verisign licenses the Whois data in bulk out to companies like theirs.

[mxpxrocks10]

Would love to hear more so we can debug. chris at securitytrails.com if you have a few mins so we can chase things down.

We'll do a technical blog post soon - good idea.