DoHflareCloudflare Workers DoH Proxy

The Ultimate Implementation · Dual-Layer Caching · TTL Jitter · ECS Injection

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Multi-Tiered Caching

Combines L1 isolated in-memory caching with L2 distributed global storage. Strictly enforces TTL constraints to slash upstream resolution latency and maximize responsiveness.

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Precision Traffic Steering

Full EDNS0 Client Subnet (ECS) support with privacy-preserving truncation. Directs CDNs to serve the optimal edge node IPs, dramatically improving resolution quality in complex network regions.

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Resilient Cache Logic

Distributes cache keys via collision-resistant FNV-1a hashing. Paired with deterministic TTL jitter, it prevents cache stampedes and ensures rock-solid efficiency under high-concurrency loads.

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Intelligent Traffic Shaping

Mitigates upstream overload and protocol abuse through request coalescing, payload validation, and global write-rate limiting, guaranteeing sustained service stability.