DNS Services

Security, reliability, performance - everything you want in your DNS. They’re the reasons Fortune 500 and Alexa 100 companies count on us to secure this cornerstone of their connected world.


Enterprise grade, managed authoritative DNS service that ensures 100% website availability along with built-in security for superior protection. 
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UltraDNS2 combines the award-winning UltraDNS resolution network with a second global DNS anycast network operated by a leading anycast cloud provider. 
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UltraDNS Detection and Response

UltraDDR leverages this authoritative knowledge of adversary infrastructure combined with communication pattern analysis in real-time to identify and prevent attacks before they happen to devices inside and outside your network.

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What is UltraDNS?

Neustar Security Services UltraDNS is an enterprise grade, cloud-based authoritative DNS service that securely delivers fast and accurate query responses to websites and other vital online assets.

UltraPlatform unifies three industry-leading cloud-based online functions that are absolutely essential to maintain and safeguard your digital presence against countless threats and attacks.


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Learn More About DNS

Maximize your Authoritative & Recursive DNS Strategies

Learn how to enhance and safeguard your DNS with Neustar Security Services UltraDNS & UltraDNS Firewall.

Learn More with this Free Report




See How to Secure Your Online Presence

Cyber attacks and missed online connections can damage your business. Watch this short video and discover how Neustar helps you secure your organization online.

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Cloud Security Services Provides the Next Generation of Protection

The sudden transition to a hybrid workforce has caused a tremendous shift of business processes and technologies to become more ecommerce dependent regardless of whether companies are truly ready or not. Is your DNS protected? Find out more in a new IDC white paper.

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Downtime, No Matter How Short, is Never Good.

This short video explains the advantages of Neustar UltraDNS.

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News & Insights

"It's the definition of reliability. Intelligent communications. I recommend only this company."

Read What Our Customers Say

Discover How Neustar Security Services Enables Global Businesses to Thrive Online.

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Under DDoS Attack? Relief Begins Here!