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🌐 DNSHE — Free subdomains for developers, with Anycast DNS, a REST API, and free renewal within 180 days before expiry. Available suffixes: us.ci, cc.cd, de5.net, ccwu.cc.

Nuclei is a fast, customizable vulnerability scanner powered by the global security community and built on a simple YAML-based DSL, enabling collaboration to tackle trending vulnerabilities on the internet. It helps you find vulnerabilities in your applications, APIs, networks, DNS, and cloud configurations.

Network-wide ads & trackers blocking DNS server

VPN client in a thin Docker container for multiple VPN providers, written in Go, and using OpenVPN or Wireguard, DNS over TLS, with a few proxy servers built-in.

Curated DNS blocklist for LG webOS TV telemetry, ads and phone-home traffic (safe + strict tiers)

The best IP Toolbox. Check your IP address & geolocation, test IP for WebRTC and DNS IP leaks, run an IP quality check, browser fingerprint check, website availability check, network speed test, global latency test, MTR test, Whois search, and more.

DNS over HTTPS / DNS over Tor / DNSCrypt client, WireGuard proxifier, firewall, and connection tracker for Android.

Block ads system-wide on Android using local VPN-based DNS filtering. No root needed. No data collection.

Directory/File, DNS and VHost busting tool written in Go

dnscrypt-proxy 2 - A flexible DNS proxy, with support for encrypted DNS protocols.

CoreDNS is a DNS server that chains plugins

Container to update DNS records periodically with WebUI for many DNS providers

Custom DNS block lists

Self-contained Shadowsocks implementation in C with libuv, asynchronous DNS, and portable static builds for Linux, macOS, Windows, and FreeBSD.

Network Doctor is a cross-platform network troubleshooting TUI that turns interface, DNS, TCP, TLS, HTTP, proxy, and path-MTU checks into one plain-English diagnosis.

DNS server, in Erlang.

Top 500 DNS domains seen on the Quad9 recursive resolver array each day

Fully-replicated DNS and DHCP Server with ad-blocking powered by etcd

DNS block list that can be used for AdGuardHome.

A C library for asynchronous DNS requests

DNS Enumeration Script

NicTool: a DNS management solution

a powerful DNS toolkit for python

ddclient updates dynamic DNS entries for accounts on a wide range of dynamic DNS services.

Chinese-specific configuration to improve your favorite DNS server. Best partner for chnroutes.

P2P DNS with content key, crypto key and PKI support. DynDNS alternative.

Simple DNS resolver for asyncio

Async DNS resolution for PHP based on Amp.

A pure python implementation of multicast DNS service discovery

Network recon framework. Build your own, self-hosted and fully-controlled alternatives to Shodan / ZoomEye / Censys and GreyNoise, run your Passive DNS service, build your taylor-made EASM tool, collect and analyse network intelligence from your sensors, and much more! Uses Nmap, Masscan, Zeek, p0f, ProjectDiscovery tools, etc.