Among some of these, I've also built an internal microservice for analyzing URL redirect chains. Input a URL and it will provide me with all of the redirects it goes through and information for each one including method (html meta, 301, etc), timing, etc.

I’ve done some hacky work redirect analysis but just the final url. Thought of open sourcing?

Awesome! What did you use to go through the redirects? I’ve had issues with some browser automation only giving the final url.