Integrates high-speed L1 isolate memory caching with distributed L2 global caching, strictly enforcing TTL constraints to minimize upstream resolution latency.
Maintains absolute state transparency and preserves EDNS0 Client Subnet (ECS) payloads, ensuring optimal geolocation routing and DNS message integrity.
Utilizes collision-resistant FNV-1a hashing and deterministic TTL jitter algorithms to mitigate cache stampedes and sustain high availability under load.
Implements concurrent request coalescing, aggressive payload size validation, and global write rate limiting to prevent upstream saturation and protocol abuse.