I think that depends on how robust you want to be. I don't have a static IP, but it only changes on the order of weeks or months. So a dynamic DNS configuratio

I think that depends on how robust you want to be. I don't have a static IP, but it only changes on the order of weeks or months. So a dynamic DNS configuration with a 5 minute TTL works fine for me. I have no idea if web hosting is in my ISP's TOS, and I also don't care.