Question about caching

Those codes don’t cache for very long. They also shouldn’t put much of a load on your server. I don’t think you want a 403 cached, as that would probably block you out as well. Here’s more info:

https://support.cloudflare.com/hc/en-us/articles/200172516-Understanding-Cloudflare-s-CDN#h_51422705-42d0-450d-8eb1-5321dcadb5bc