Are there any limits to what you provide?
The retail pricing is:
* There is a bandwidth limitation per domain per
year of 200 megabytes of total data transferred
through our servers. Usage that counts towards your
quota includes bytes transferred during DNS queries,
delivery of parked home pages, delivery of URL
forwarding information, and delivery of forwarded
e-mails. If you do not use WebPark, WebForward and
MailForward, then only DNS queries will count
towards your total usage.
If a single domain goes over 200 MB of transfer
during a year, then it counts as TWO domains, if it
goes over 400MB, then it counts as three, etc.
Usually DNS hits are cached, so even the busiest
sites won't go over the 200 MB limit. 200 MB should
get you about 1,000,000 DNS queries. A typical site
uses 5 MB per year of DNS bandwidth.
There is no limit to the number of subdomains or
records that your zone may contain.