> which, as everyone here no doubt knows, can take up to 48 hours to propagate
I think that's been largely dispelled.
I can't find the link right now unfortunately but I remember a post looking into DNS propagation realities from either this or last year, and they found that overwhelming majority of DNS servers they tried (99%+) respected the TTLs set exactly as they should. *
My personal rule of thumb is, if it hasn't propagated within an hour, I need to look at it again because I messed up.
Tools like this [1]are invaluable when you're paranoid about whether your new record has propagated.
I think that's been largely dispelled.
I can't find the link right now unfortunately but I remember a post looking into DNS propagation realities from either this or last year, and they found that overwhelming majority of DNS servers they tried (99%+) respected the TTLs set exactly as they should. *
My personal rule of thumb is, if it hasn't propagated within an hour, I need to look at it again because I messed up.
Tools like this [1]are invaluable when you're paranoid about whether your new record has propagated.
[1] https://www.whatsmydns.net
* ugh. Does anyone know which post I'm talking about? My google-fu is failing me hard.