ZoneEdit improves the speed of DNS lookups and the reliability of your DNS.
ZoneEdit is a system designed expressly for people who want to get their DNS separately - so they are not locked in to hosting all services (web, mail, chat, shopping, etc.) with one provider.
Sometimes providers provide good service for some aspects of hosting and not others. ZoneEdit makes it easy for you to switch from one provider to another - without loss of service.