Secure64 LineGuard delivers advanced DNS filtering, cybersecurity, and content control solutions purpose-built for Internet Service Providers (ISPs), telecom carriers, and mobile network operators. Engineered for large-scale deployments, LineGuard supports millions of active subscribers and processes billions of DNS queries daily with industry-leading performance, including a globally top-ranked 12.72 ms query response time. By operating in-network, hybrid or cloud,
LineGuard reduces latency, improves end-user experience, and eliminates the exposure of sensitive DNS data to third-party cloud providers.
Powered by AI-driven threat intelligence and supported by full API access, LineGuard delivers real-time protection against phishing, malware, ransomware, botnets, scams, and DNS-based data exfiltration. Its geographic redundancy, full failover capabilities, and multi-tenant architecture make it ideal for national networks and multi-region rollouts. Whether deployed for residential broadband, mobile networks, fixed wireless, or enterprise customers, Secure64 LineGuard enables providers to safeguard their networks, protect subscribers, and stay ahead of regulatory demands with confidence and efficiency.
Secure64 LineGuard has proven its ability to support millions of active subscribers, reliably handling billions of DNS queries each day with complete geographic redundancy to ensure uninterrupted service. Its scalable architecture is ideal for a wide range of service provider environments, including residential broadband, mobile networks, fixed wireless access, and enterprise business customers, delivering consistent performance and protection across diverse customer bases.
Secure64 LineGuard offers over 500 content categories and applications for highly granular policy enforcement, enabling precise control over internet access based on organizational or user-specific needs. It includes pre-defined policies designed for family-safe, education-safe, and business-safe filtering, providing quick and effective deployment options. Customizable allow and block lists further support compliance with carrier-specific regulatory requirements, ensuring both flexibility and adherence to local governance standards.
Secure64 LineGuard delivers an industry-leading average DNS query response time of just 12.72 milliseconds, earning the #1 pDNS vendor global ranking from DNSPerf. By processing all DNS traffic in-network, it minimizes latency and enhances the end-user experience with faster website loading and smoother application performance. This high-speed capability significantly outperforms legacy DNS filtering solutions like Cisco Umbrella, providing both superior protection and responsiveness.
Secure64 LineGuard applies filtering policies using EDNS client subnet data and source IP directly within the same DNS server, enabling precise, location-aware policy enforcement without additional complexity. This integrated approach simplifies policy management across complex subscriber networks and significantly reduces the need for extra DNS hardware, resulting in streamlined operations and lower infrastructure costs.
Secure64 LineGuard is built with full failover and geographic redundancy integrated into every deployment, ensuring uninterrupted DNS service even during localized outages or infrastructure failures. Designed to deliver 24/7 uptime, it meets the demanding availability requirements of both national and regional carrier networks, providing reliable, always-on protection at scale.
See How a Major U.S. Carrier Cut Cybersecurity Costs by 50% and Boosted Performance by 3X
Discover how LineGuard by Secure64 protects 6 million users, blocks 100 million threats daily, and delivers lightning-fast results after switching from Cisco Umbrella in just 6 weeks.
