You can have the best, most redundant web hosting in the world but if your DNS is unreachable, so is your site.

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Expertly Managed DNS Services powered by Neustar’s UltraDNS.

101domain has partnered with Neustar to offer its premium, anycast, and fully redundant UltraDNS. UltraDNS sets the standard for high-availability, ultra secure DNS services powering some of the world’s highest trafficked websites. Be confident that you are getting one of the best DNS services available on the market today. Best of all, it’s completely FREE with your domain registration services. You can’t beat that!

UltraDNS from Neustar and 101domain is capable of handling large volumes of queries and allows our nameservers to resolve to geographically separate locations based on the node closest to each of your visitors. Using the UltraDNS service, changes are made in real time and propagated immediately to all nodes on the network. In the unlikely event of a disruption to a portion of the Internet, should one nameserver or location fail, the DNS requests are spread to other nameservers on the network, keeping your service unaffected.


  • Absolutely FREE
  • No setup, per record, or per query fees
  • 99.999% SLA
  • Name servers in an anycast configuration
  • Diversity of high-speed network providers
  • Original, custom non-BIND server

Mission Critical DNS Services

DNS is a critical yet often overlooked component of any business' online strategy. You can minimize your exposure to DNS outages, DDoS attacks, and other Internet disasters that can impact your business by choosing a strong DNS provider.

Making the Case for Security - Don't be affected by distributed Denial of Service (DDoS) attacks. Most free basic DNS offered by domain registrars and web hosting companies can leave you vulnerable if their nameservers are knocked offline, potentially for hours at a time and affecting thousands or millions of others. UltraDNS replaces inadequate solutions with a robust DNS platform that keep potential disruptions to a minimum.

99.999% Uptime SLA - Industry leading 99.999% uptime SLA standard on all accounts. We understand your business needs to stay online and we're here to ensure that it happens.