We've used (and still use) dyn for some things. What they do unfortunately is charge you for the queries but there is no way of knowing which host has exceeded

We've used (and still use) dyn for some things. What they do unfortunately is charge you for the queries but there is no way of knowing which host has exceeded the limits query wise. When we first started using them they stated that even though we were exceeding the limits according to how they measure "not to worry you won't get charged". Of course perhaps 1 to 1.5 years later they now do charge (email out of the blue one day) and constantly try to bump us to a higher level service. [1] All this for a few zones that use to run comfortably on a 2 servers that we had many other things going on as well as DNS. (Now they claim we get 2.5 million queries per month but there is no way to determine exactly if that is true or for what host, ie foo.domain.com vs. www.domain.com is causing the excess queries). [1] Which is more than paying the overage charges which is what we do every month.