Disclaimer: Made for educational purposes only i will not be held responsible for any missuse of this tool.
git clone https://github.com/Shad0w-ops/Subfuzzer.git
cd Subfuzzer
pip3 install -r requirements.txt
python3 fuzz.py domain /path/to/wordlist.txt
you can either use the wordlists that are supplied with the tool or use any wordlist you want.
python3 fuzz.py website.com Wordlists/subdomains-top1mil-20000.txt