What does this tool do?

This tool does one thing, and that is takes a URL and shows you the entire redirect path.

Why would I need to use this tool?

This tool is very useful for affiliate marketing. If you are looking for an offer and who has that offer you can input the affiliate link in the box, and press enter to search. The script will go through the link and export every hop/redirect/jump and show you each one in a text format.