I would also like to have something like this, but for "vintage" links - something that looks like it was from the late 90s.

I use them in tests, just for fun: https://github.com/ClickHouse/ClickHouse/blob/master/tests/q...

There was a "shadyurl". The site itself seems to be long gone, but this'll give you some context: https://www.mikelacher.com/work/shady-url/