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crtndtry uses a number of different sources to create a list of root subdomains (i.e.: corp.example.com)
./crtndstry example.com
- crt.sh - requires using different patterns as shown in the source
- digiCert
- certspotter
Here's the VOD of me writing this tool during one of my streams https://youtu.be/o37L5n6w9BQ
- nukedx
- dmfroberson
