I currently host https://femto.pw/ - A URL shortener I've kept up for ~4 years and intend to indefinitely. It doesn't do anything with regards to tracking cookies or other dark patterns. It just redirects you using a 302 redirect.
FYI that your site is blocked by this list: https://gitlab.com/The_Quantum_Alpha/the-quantum-ad-list
HN post for that list here: https://news.ycombinator.com/item?id=25512273
That list is questionable at best.
There are many claims the list author makes without any source code at all, though a lot of buzzwords. The reddit r/pihole moderator pulled the post: https://www.reddit.com/r/pihole/comments/kh5dit/the_quantum_... . The thread was more entertaining before the list author deleted every downvoted comment they made.
[0] https://gitlab.com/The_Quantum_Alpha/the-quantum-ad-list/-/i...