Rethinking serverless for low cost, planet scale, zero devops resolver and proxy

Serverless DNS & Serverless Proxy are open source, censorship-resistant, no logs, "no server" DNS stub resolver & TCP proxy built in JavaScript.

We will walk through the various challenges in building a database-less, server-less, constrained compute and memory environment like Cloudflare Workers, Fly.io, and Deno Deploy. Discuss the evolution of the service and infrastructure, the fine-tuning of its networking components and caches, optimizing its algorithms and data structures through 5 years of its modest but steady growth taking us from $5/mo to $1500/mo (DDoS), and our effort to pay outstanding bills (with support from organizations like Cloudflare, Zerodha, & FOSS United), bring down costs, latency, and operations overhead.

Today, the code serves 2 million unique IPs, and transfers upwards of 500TB per month, answering 80% of the DNS queries in 3ms or less.

• How & why we built an always-on, ops-free, lightweight services like DNS on new age cloud platforms like Cloudflare Workers and Fly.io.

• An overview of optimizations in productizing high-volume networking services like proxies and DNS resolvers.

• Throw some light on the critical support system required for the inevitable human and financial toll and just how it comes to dictate what will get built and how it'll endure.