automation.whatismyip.com used to exist; it's what whatismyip.com suggested you use when making a large number of easily parseable requests. I assume since the redesign (read: monetization attempt) it's disappeared.
Honestly, I've never heard of automation.whatismyip.com until today. But after Googling around a but, it looks like they've only taken that ___domain offline two or three months ago. So I guess the QB64 devs haven't been made aware yet (or haven't had time to update their WAN IP library yet).