Tool Used to Identify Available Domain/Sub-domain From the Wordlist with Response_Code, Server_Name, IP Address
>> git clone https://github.com/z3dc0ps/altsub
>> cd altsub
>> python3 -m pip install --upgrade pip
>> python3 -m pip install -r requirements.txt
>> python3 run.py
http://www.jimmisimon.in/projects/altsub.php