Dh4v4l8/DLfinder ? reverse-engineered prompt

Build me a fast Go command line tool that finds open directory listings on websites.

I want it to take either a single URL or a file of targets, crawl the site a bit, collect asset and image URLs, work back up through their parent folders, and then check those folders for pages that look like an exposed “Index of /” directory listing. It should run concurrently, be pretty quick, and avoid checking the same directory over and over by deduplicating paths.

Please also add a mode where I can skip crawling and just feed it a list of raw URLs, plus a Wayback mode that pulls historical URLs for a domain and checks those too. It should support verbose output, saving found results to a file, adjustable thread count, request timeouts, and a way to ignore TLS certificate issues for internal or test targets.

If anything is unclear, look up current docs online and then wire it up cleanly.