Serverless DNS Resolver: serverless-dns Takes Flight
2025-05-03
serverless-dns is a Pi-Hole-esque serverless stub DNS-over-HTTPS (DoH) and DNS-over-TLS (DoT) resolver. It runs on Cloudflare Workers, Deno Deploy, Fastly Compute@Edge, and Fly.io, leveraging free tiers for low-traffic use cases. Boasting sub-millisecond response times, it efficiently manages ~13M entries from 190+ blocklists using a succinct radix trie. The open-source project allows for custom configurations, log uploading, and offers a lightweight, high-performance DNS solution.