Neustar UltraDNS is one of the oldest Anycast managed DNS providers. It was founded in 1996 and has a very large customer base including some very established and large companies. Neustar also manages some of the top level domain names like .us and .biz. UltraDNS has 32 network locations across the world.
UltraDNS’s service has a built in DDoS (distributed denial of service) protection. UltraDNS has consistently remained in the top 10 DNS providers in our ranking.
In addition to DNS, the company also providers website monitoring, security threat monitoring and IP geo-location services.
If you use UltraDNS, please add a review with details on how you use the service and what you like/dislike about it.
The following chart shows how the DNS speed of UltraDNS’s name servers has changed over the past six months: