Subfinder
Information Gatheringkali · parrotPassive subdomain discovery tool. Fast and reliable for bug bounty recon.
Install
sudo apt install subfinder
Common commands
subfinder -d target.com -o subs.txt subfinder -dL domains.txt -all
Use only on systems you are authorized to test. Follow program scope.
Related tools
Amass
featuredOWASP Amass for in-depth subdomain enumeration and attack surface mapping.
Nmap
featuredIndustry-standard network scanner for port discovery, service detection, and OS fingerprinting. Core recon tool for every engagement.
dnsenum
DNS enumeration script for zone transfers, subdomain brute force, and record discovery.
Enum4linux
Enumerate Windows/Samba information: users, shares, policies.