[porridgeraisin]

Url is "ratelimitly"

Not even gonna read that one

Anyways, if you're gonna do "scare them" marketing, redis is a bad target. It's such a straightforward simple single threaded piece of software giving you great primitives, that anyone can reason about whether a rate limiting algorithm will work fine or not. Hint: it works perfectly OK. The redis docs even has a copy paste solution so you don't have to reason about race conditions yourself.

Try harder