Awesome

haktldextract

Basic tool to extract domains/subdomains from URLs en masse

Installation

go install github.com/hakluke/haktldextract@latest

Usage

cat urls.txt | haktldextract

Options:

-t      threads (number of concurrent threads to use, default is 16)
-s      subdomains (dump subdomains instead of base domains) 

Example:

cat urls.txt | haktldextract -s -t 16 | tee ./subs.txt