DigiCert UltraDNS · Enterprise Authoritative DNS
Fast, secure DNS that's always on.
Enterprise authoritative DNS built for performance, resilience, and control — so your services stay reachable everywhere, all the time.
Built for global availability
Always-on resolution, wherever your users are.
Ensure 100% uptime
Supported by always-on DNS resolution.
Accelerate resolution
Improve user experience with faster DNS responses across regions.
Reduce operational toil
Simplify DNS changes with centralized control and automation.
Improve continuity
Maintain resolution with active-active redundancy and disaster recovery.
Explore UltraDNS & UltraDNS²
Authoritative DNS for global performance, built-in security, and high-availability continuity.
Performance
Operate at global scale
- Handle up to 150 billion authoritative DNS queries per day.
- Respond fast with low-latency delivery and rapid cache updates.
- Optimize delivery with advanced traffic management services.
Security
Built-in layered protection
- Segment nameservers to help prevent malicious activity.
- Validate responses with DNSSEC against cache poisoning and hijacking.
- Absorb attacks with built-in DNS DDoS protection.
Control
Automate DNS changes
- Validate automatically with built-in Domain Control Validation (DCV).
- Govern who can edit DNS records with access controls.
- Enforce routing and failover policies across all your domains.
Availability
Add DNS redundancy
- Meet continuity goals with primary and secondary DNS options.
- Add UltraDNS² as an independent secondary Anycast network.
- Stay covered with 24/7 support backed by enterprise SLAs.
Ready to strengthen DNS resilience?
Available in your region through CyberLion, DigiCert’s value-added distributor.
CyberLion Ltd. · Value-added distributor · Channel-first, never direct