Re:Show HN: URL Canary – Get an alert when someone finds you...
by rocqua on Monday March 19, 2018 @06:14PM
(#16623749)
Sorry to offer unsolicited advice, but are you sure you wanna use a fixed IP for that? Seems more reasonable to ask people to CNAME to a domain you guarantee will always point to the correct servers.
This means you don't break the system when you move IP address. Moreover, should you ever need to, you can round-robin the domain for either reliability or load-balancing (though I doubt that would be necessary).
(But obviously it needs to be a hostname you're not already using for something else).