WHOIS

[krmaxwell]

• regular
• reverse
• historical

[sroberts]

Do we have good sources for all of these?

[krmaxwell]

We have DomainTools and whoisxmlapi.com which I think is even more expensive. If you know of other alternatives, that would be fresh.

[sroberts]

Not off the top of my head. I just hate the idea of relying on an expensive service.