The Subdomain Scanner is a subdomain discovery tool. It allows you to run a scan for a top-level domain name to discover target organization subdomains configured in its hierarchy.
# Install Git
sudo apt install git
# Install Perl
sudo apt install perl
# Git Clone
git clone https://github.com/R3DHULK/subdomain-scanner-in-perl
# Change Directory
cd subdomain-scanner-in-perl
# To Run This Tool
perl subdomain-scanner.pl