I was load testing the application with the cloudflare cache to validate our cache settings.
The load test went for 1minute and 30seconds, in which only 1 URL was hit by 25 visitors from the same origin (eu-west-3). I was surprised that 100% of response sent by cloudflare during this time was a MISS for the cache.
I doubled checked that no error was present and our origin server is sending the right cache header control: it was the case.
5 minutes later, I re-ran the test, without updating anything, seeing now that 100% of the request were served by cloudflare using the cache.
In my head, I would say that only the 1-15 first visitors shouldn’t hit the cache (time during Cloudflare is storing the cache in their edge servers).
My question is: Is the >1 minute delay normal before cloudflare starts to return cached responses ? Do you have any resources on this ?