Engineering DDoS Resilience at Scale — How ArzenLabs Designs Protection Beyond 200 Tbps

In the current threat landscape, Distributed Denial of Service (DDoS) attacks have evolved into highly coordinated, multi-vector campaigns capable of overwhelming traditional infrastructure. Modern attacks are no longer limited to gigabit-scale floods; they now reach terabit-level volumes, requiring a fundamentally different approach to mitigation. At ArzenLabs, DDoS protection is engineered as a distributed system rather than a standalone feature. The architecture is designed to operate at extreme scale, with aggregated mitigation capacity exceeding 200 Tbps through coordinated, multi-layered infrastructure. Understanding High-Scale DDoS Attacks A 200 Tbps attack is not generated from a single origin. It is typically the result of globally distributed botnets leveraging multiple amplification and reflection techniques, including: UDP amplification vectors (DNS, NTP, CLDAP) Reflection-based floods SYN and ACK floods at the transport layer Application-layer (Layer 7) request saturation