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.
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.
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.
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.
Downtime, No Matter How Short, is Never Good.
This short video explains the advantages of Neustar UltraDNS.
News & Insights
"It's the definition of reliability. Intelligent communications. I recommend only this company."
Discover How Neustar Security Services Enables Global Businesses to Thrive Online.