Install checkbot by entering the following commands in the terminal:
sudo apt update sudo apt install checkbot
Description:
WWW link verifier
Checkbot verifies links within a region of the World Wide Web. It checks all pages within an identified region, and all links within that region. After checking all links within the region, it will also check all links which point outside of the region, and then stop.
Homepage: http://sourceforge.net/projects/checkbot/
Version: 1.80-3
Section: universe/web