Sudomy is a subdomain enumeration tool to collect subdomains and analyzing domains performing automated reconnaissance (recon) for bug hunting / pentesting

smartrecon is a powerful shell script to automate the recon and finding common vulnerabilities for bug hunter

Tool to automate recon

Web application recon for bug bounty

A subdomain scanner that combines subdomain tools!

WebRub Reconnaissance Framework Written in Ruby

Bash program that chains together multiple domain recon tools.

Alivehttprotocols takes a list of domains and probes for working http and https servers and returns a list.