#1Tools for discovering subdomains and DNS records associated with target domains.
Kitploit recommended

Command-line tool for discovering SaaS platforms a company uses via DNS enumeration

Subdomain brute-forcing tool that enumerates existing subdomains and detects misconfigured cloud-hosted subdomains vulnerable to takeover across AWS,…

Rapidly enumerate subdomains and domains using rapiddns.io.

Inforfinder is a tool to collect information of any domains pointing at some server (ip, domain, range, file). Is able to detect all domains pointing…

Fast and passive subdomain enumeration.

Cloudflare Bypass tools | PentestCore

Another Sub-Domain Enumeration Tools for normies written in python...

My simple Swiss Army knife for http/https troubleshooting and profiling.

HostHunter a recon tool for discovering hostnames using OSINT techniques.

⡷⠂𝚔𝚊𝚛𝚖𝚊 𝚟𝟸⠐⢾ is a Passive Open Source Intelligence (OSINT) Automated Reconnaissance (framework)

Extract subdomains from SSL certificates in HTTPS sites.

This tool extract domains from IP address based in the information saved in virustotal.

Poor (rich?) man's bug bounty pipeline https://dubell.io

Get related domains / subdomains by looking at Google Analytics IDs

A finder of domain typos showing country of IP address

async mass DNS resolver

Graphical DNS enumeration tool for Kali Linux that scans standard records (A, NS, SOA, MX) and visualizes results in mind maps for reconnaissance and…

Subdomain monitor with reporting capabilities to Slack, Discord and Telegram