Hello
The images on my WP website are served by a subdomain that pass the CF. But there is a problem with TTFB +3.5s for my image files.
I’ve created a page rules cache everything for this subdomain.
they was not cached by cf, you can see it by the header “cf-cache-status MISS”.
you need to test your origin why it so slow, as you cant count on cf to always have your files in the cache
it uses cf for sure, but to know if a a request was cached you need to look for the “cf-cache-status” header, if it says “miss” it wasn’t cache, if “hit” it was cached
I investigated this problem. The problem seemed to be the plugin (lazy loaded by rocket).
i use LS cache plugin lazy load image and this problem is solved.