[conradklnspl]

DNS history is really interesting for a variety of reasons.

I've seen it used to try and circumvent Cloudflare firewall rules. Some people don't replicate the firewall rules on the servers behind Cloudflare. If they've ever pointed their DNS to their servers directly before turning on Cloudflare proxy and you have that old IP address, then that IP address has value. White hat security firms for instance pay for that information when running audits.

I will sign up, curious to see where this project leads you.

Thanks for the API details, will discuss this with my teammates.