: For monitoring site health, UltraDNS uses specific IP ranges like 156.154.96.153 (North America East) and 156.154.190.153 (North America West) that may need to be whitelisted in your Firewall Policy .
For general users looking for a fast, public DNS alternative to Google or Cloudflare, UltraDNS offers free recursive resolvers: Primary IPv4 Secondary IPv4 2. UltraDDR (Detection and Response)
These IPv4 addresses are hosted on Neustar’s (now Vercara’s) Anycast backbone. They are designed to handle massive query volumes and offer robust protection against DDoS attacks, which inadvertently benefits home users by keeping the connection stable. ultradns dns server ip
As the world transitions to IPv6, UltraDNS maintains AAAA records for their resolvers to ensure accessibility on modern networks.
Among the premium alternatives available, stands out as a premier managed DNS service provider. Originally founded by Rodney Joffe and later acquired by Neustar (now Vercara), UltraDNS is renowned for its security, speed, and 100% uptime guarantee. This article provides an in-depth exploration of the UltraDNS DNS server IP addresses, their specific use cases, configuration methods, and the technical advantages they offer over standard ISP resolvers. : For monitoring site health, UltraDNS uses specific
If you want to configure your router, Windows PC, or Mac to use UltraDNS for faster, more private, or more secure browsing, you need the following IPv4 and IPv6 addresses.
Changing your DNS to UltraDNS takes less than two minutes. Here is how to do it on the most common platforms. They are designed to handle massive query volumes
These IPs route you to the nearest UltraDNS location for speed and redundancy.