Exactly, there is a technical limitation (I understand why) of only blocking by IP not hostname, if the IP changes it breaks. Why has this not been solved in t

Exactly, there is a technical limitation (I understand why) of only blocking by IP not hostname, if the IP changes it breaks. Why has this not been solved in the last 50 years? You should be able to block by hostname, it’s how networks are defined. We are an industry of problem solvers but this one seems to have been ignored.