Low caching from Cloudflare

matt.t.gaunt · September 13, 2020, 5:52pm

Hi everyone,

I’ve just enabled Cloudflare for my domain and looking at the cache vs uncached usage under Analytics > Web Traffic, I’m getting incredibly low cache rates 215k Uncached vs 756 Cached.

The main site is https://web-push-book.gauntface.com/ and this is an example set of response headers for the HTML page:

alt-svc: h3-27=":443"; ma=86400, h3-28=":443"; ma=86400, h3-29=":443"; ma=86400
cache-control: 'max-age=86400'
cf-cache-status: DYNAMIC
cf-ray: 5d23b3b8fa94090d-SEA
cf-request-id: 052a2ea79d0000090decb2a200000001
content-encoding: br
content-type: text/html
date: Sun, 13 Sep 2020 17:48:57 GMT
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
last-modified: Sun, 13 Sep 2020 17:31:38 GMT
server: cloudflare
status: 200

I’d love any advice or input on how to improve the caching / make it more reliable.

Thanks,
Matt

sandro · September 13, 2020, 6:00pm

HTML is not cached by Cloudflare. If you want that you’ll need a page rule.

Your JavaScript files, for example, are cached however

matt.t.gaunt · September 13, 2020, 5:59pm

Thank you so much!

Just followed the steps on this support page and got a HIT for the HTML page.

sandro · September 13, 2020, 6:01pm

Yes, HTML is cached now as well. Keep in mind any changes on your site will only be reflected after you clear the cache. Just one thing to remember.

matt.t.gaunt · September 13, 2020, 6:02pm

So will this not follow the max-age header and cache for the defined period? Which in my case should be a day?

sandro · September 13, 2020, 6:03pm

after you clear the cache or the resource expires

I meant to say

matt.t.gaunt · September 13, 2020, 6:05pm

Thank you again for your help and follow up!

My content is not that important or updated that frequently, so 24 hours is just fine for me

sandro · September 13, 2020, 6:05pm

Then you are good to go