Dns GitHub Repositories (2026) · Open Source Tools

possibly useful tools for the Internet

A C library for asynchronous DNS requests

DNS-based feed reader and messenger for networks where only DNS gets through. Read Telegram channels and public X accounts, send end-to-end-encrypted messages to other users, and even log in to your own Telegram account, with the thefeed server acting as the proxy. All over plain DNS.

Wait4X allows you to wait for a port or a service to enter the requested state.

A better whois and domain intelligence toolkit

🚀 Configurable framework agnostic plain Ruby 📨 email validator/verifier. Verify email via Regex, DNS, SMTP and even more. Be sure that email address valid and exists.

Top geek's chindogu - personal assistant over satellite/telephone/SMS/chatbot, plus web infrastructure servers (web & mail, ad-free DNS, TCP-over-DNS, web proxy, etc)

oisd blocklist

Fast DNS Lookup Library and CLI Tool

http://firewalla.com

DNS stub resolver, proxy and router with support for DoT, DoH, DoQ, and DTLS

Public Key Addressable Resource Records (sovereign TLDs)

This repo contains the domain names and the resolved IPv4/IPv6 addresses of public DoH server

Public Zone Database

Take your agent-built product live: hosting, database, domain, email, payments — on your own accounts. Open-source Agent Skill + zero-dependency Node CLI: detect → plan → approve → apply → verify. No GoLive account, backend or telemetry.

MasterDnsVPN Android client (community build) based on the upstream Go core—install signed APKs from Releases and connect to your own MasterDnsVPN server (domain/key/resolvers).

Node.js DNS over HTTPS - :tangerine: Tangerine is the best drop-in replacement for dns.promises.Resolver using DNS over HTTPS ("DoH") via undici with built-in retries, timeouts, smart server rotation, AbortControllers, and caching support for multiple backends (with TTL and purge support). Made for @forwardemail.

Async DNS resolution for PHP based on Amp.

Scan domains and receive advice based on their BIMI, DKIM, DMARC, and SPF records

find dangling domains in a multi cloud environment