Yeah this is great, I'm sure many including me have used a similar tool but half-arsed for internal use. For me it was tracking changes to a website where all the changes were done through a gui. I was asked to provide a backup / rollback which I did with git scraping.

I also started but never finished a terms-of-service, privacy-statement tracker. I stopped at the boring part where you'd have find the url for thousands of companies and/or engage others to do it.