It is awful. It makes the standard way to plan and do a DNS migration really difficult. It occurred rarely, but a few years ago it was a regular problem becau

It is awful. It makes the standard way to plan and do a DNS migration really difficult. It occurred rarely, but a few years ago it was a regular problem because some bigger ISPs were doing it[0]. Not sure how common it is these days. That being said, I'm having troubling coming up with a project that would be better served with IP addresses than a constant name, so I have no idea what the OP I was responding to could be doing that that problem needed to be addressed at all. [0] https://www.google.com/search?q=isp+ignore+dns+ttl https://www.google.com/search?q=isp+ignore+dns+ttl