What is powering rate limiting under the hood?

3 Replies

welzOP•4w ago

I'm curious because with the new tracing I can see that it's almost instant

I would have said Durable Objects

Chaika•4w ago

The same thing that powers their normal rate limiting blog post announcement: https://blog.cloudflare.com/workers-production-safety/

It’s lightning fast, backed by memcached, and dead simple to add to your Worker.

The Rate Limiting API is backed by the same infrastructure that serves rate limiting rules.

There's an older blog post that goes over rate limiting here https://blog.cloudflare.com/counting-things-a-lot-of-different-things/ I assume not much has changed, still using memcached at least