The world's top brands depend
on us to protect their digital
infrastructure and online presence


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Authoritative DNS

Security, reliability, performance - everything you want in your DNS

Ensure availability

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DNS Detection & Response (DDR)

The next generation of protective DNS

Explore DDR

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DDoS Protection

Maintain your online presence and protect your bottom line

Stay ahead of attackers

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Application Security

Protect against threats that target the application layer

Safeguard your apps



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The Ultra secure suite of scalable cloud network security services provide consistent protection and high performance across all locations.


With over 20 years of experience in online security and a global network with over 15 Tbps of dedicated cloud security capacity, Neustar Security Services offers award-winning managed services with proven reliability to thousands of large Enterprises and web-scale customers worldwide.


Neustar Security Services' UltraDNS Services, Always-On DDoS Mitigation and Web Application Firewall solutions are offered as cloud services to ensure website and network availability from anywhere in the world.

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

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Under DDoS Attack? Relief Begins Here!