[dns-operations] about anti-ddos DNS hostings

[Kevin C.]

Hello,

Sorry this subject may have no relations to DNS technology.
But one of our customers, who is a small registrar, has about 20,000 
domains in our systems, increase slowly by day.
Due to frequent DDoS we have no capability to help him, but suggest him 
move to another provider.
Do you know which provider has a good anti-ddos systems and with a low 
price for bulk zones? I will suggest him switch to there.

Thanks.