subfinder

Discover valid subdomains for websites. Designed as a passive framework to be useful for bug bounties and safe for penetration testing. More information: https://github.com/projectdiscovery/subfinder.

• Find subdomains for a specific [d]omain:

subfinder -d {{example.com}}

• Show only the subdomains found:

subfinder -silent -d {{example.com}}

• Show only active subdomains:

subfinder -nW -d {{example.com}}

• Use all sources for enumeration:

subfinder -all -d {{example.com}}

• Use a given comma-separated list of [r]esolvers:

subfinder -r {{8.8.8.8,1.1.1.1,...}} -d {{example.com}}