In a crowded and increasingly commoditized field of DNS filtering providers, Secure64 LineGuard stands out as the most advanced and comprehensive solution available, delivering a unique blend of security, performance, flexibility, and cost-efficiency that surpasses traditional, cloud-only options like Cisco Umbrella and other enterprise-focused competitors. Where many solutions are built on third-party infrastructure or compromise speed for scalability, LineGuard is engineered from the ground up by Secure64, an industry pioneer with a decades-long reputation for bulletproof DNS infrastructure trusted by Tier 1 carriers, government agencies, and mission-critical networks worldwide.
Unlike competitors that rely heavily on external cloud routing, LineGuard offers fully in-network, hybrid, and cloud deployment models, allowing organizations to maintain complete control over data privacy, sovereignty, and compliance, a critical advantage in regulated industries. It delivers a superior user experience while protecting against threats like malware, phishing, ransomware, DNS tunneling, and command-and-control attacks at the very first point of contact.
Secure64 LineGuard is purpose-built for ISPs, telecom carriers, government agencies, and large enterprises operating at massive scale, supporting environments with millions of users and mission-critical demands. Its proven track record includes real-world deployments protecting over 10 million subscribers, demonstrating unmatched reliability and performance.
LineGuard has a proven capability to process billions of transactions globally per day with full high availability and geographic redundancy. It ensures continuous protection and seamless operation across even the most complex networks.
Secure64 LineGuard delivers industry-leading DNS performance with an average query response time of just 12.72 milliseconds, earning the #1 ranking of pDNS vendors by DNSPerf. This ultra-low latency translates to a noticeably improved user experience, reducing page load times, minimizing buffering, and ensuring faster access to online resources. Whether deployed in-network, in the cloud, or through a hybrid model, LineGuard keeps DNS processing close to the user, ensuring that local data
stays local, supporting both performance and data privacy requirements.
Secure64 LineGuard is powered by advanced Artificial Intelligence that continuously learns and adapts to emerging threats, allowing it to respond faster and more accurately than traditional DNS filtering services. It offers over 500 customizable content filtering categories and applications, giving administrators precise control over access policies across diverse environments. With full EDNS, RADIUS, dynamic IP and source IP filtering capabilities built directly into the same DNS server, LineGuard simplifies deployment and enforcement without the need for additional infrastructure.
It also supports government-mandated blocking lists, custom allow/block lists, and customer-specific rules, making it ideal for regulated sectors. For rapid implementation, LineGuard includes pre-built policies tailored for children, tweens, teenagers, adults, and employees, enabling fast, effective deployment across schools, families, businesses, and public networks.
Secure64 LineGuard leverages a powerful combination of AI-powered threat intelligence and expert human-curated reviews to deliver highly accurate and timely DNS-layer protection. This dual approach enables it to block a wide range of threats, including malware, phishing, ransomware, command-and-control communications, cryptocurrency mining, scams, and adware, before they can reach networks or users. Across global deployments, LineGuard blocks over 100 million threats daily, demonstrating its effectiveness and scalability in defending against evolving cyber risks.
Secure64 LineGuard offers a powerful, full-featured API that enables comprehensive control over policy management, reporting, user provisioning, and troubleshooting. This robust API allows organizations to automate key operational workflows, significantly reduce manual administrative tasks, and integrate seamlessly with existing management platforms such as customer portals, ticketing systems, and analytics tools, streamlining operations while enhancing visibility and control.
Secure64 LineGuard delivers an alternative to Cisco Umbrella. Polices can be mapped from an Umbrella deployment to a LineGuard deployment. LineGuard offers extremely granular filtering policies to add to an existing deployment. In a recent large-scale deployment, a major carrier successfully migrated 6 million users in under six weeks, demonstrating LineGuard’s scalability and operational efficiency. Throughout the process, dedicated Customer Success Managers provide hands-on guidance, ensuring a smooth experience and successful rollout from start to finish.
Secure64 LineGuard is listed by the U.S. Cybersecurity and Infrastructure Security Agency (CISA) as a Protective DNS Vendor, reinforcing its credibility and alignment with national cybersecurity priorities. Through in-network deployment models, LineGuard supports strict data sovereignty requirements by keeping DNS traffic under local control. This architecture ensures full compliance with privacy regulations, industry
security standards, and a wide range of government and sector-specific mandates.
Secure64 LineGuard has frequently delivered 10% to 50% cost savings compared to Cisco Umbrella and similar DNS filtering platforms, delivering enterprise-grade protection without the premium price tag. Its efficient architecture, with combined EDNS and source IP filtering on the same DNS server, reduces infrastructure requirements by minimizing the number of servers needed. With transparent licensing, no hidden fees, and straightforward pricing, LineGuard eliminates the complexity and unpredictability often associated with traditional security platforms.
Secure64 LineGuard is backed by a U.S.-based development and support team available 24/7/365, ensuring expert assistance whenever it’s needed. Every deployment includes a dedicated Customer Success Manager who provides personalized guidance throughout the entire lifecycle of the solution. From initial policy design and configuration to post-deployment optimization and ongoing support, Secure64 delivers a full-service engagement that ensures long-term success and maximum value for every customer.
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.
