why won't cloudflare purge cache for my saas app?
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hey everyone, i'm completely tearing my hair out here. i just launched a pretty big new feature for my saas app, something users have been asking for, but nobody can actually *see* it. it's incredibly frustrating, and honestly, pretty embarrassing for my brand right now. the problem is, cloudflare's cache just isn't purging properly, or at least it feels that way. i'll push an update, deploy the new code, and then for hours, sometimes even a full day, users are still seeing the old version of the page or the old data. my customers are complaining like crazy, asking why the new stuff isn't showing up, and i just don't have a good answer. i'm at my wits end.
i've tried everything i can think of. i've hit "purge everything" in the cloudflare dashboard so many times my mouse finger is getting tired, i've tried purging specific urls, even went as far as messing around with the api for a targeted `purge cache` by url request, but it's like cloudflare just decides to ignore it sometimes, keeping the old content stubbornly alive. what am i missing here? are there some specific `cache control headers` i should be setting on my origin server that i'm not aware of, or maybe setting incorrectly? is there some obscure trick to force immediate invalidation for dynamic content that i'm totally overlooking? i really need to get this sorted asap before i lose more customers over this. any expert advice would be a lifesaver right now.
i've tried everything i can think of. i've hit "purge everything" in the cloudflare dashboard so many times my mouse finger is getting tired, i've tried purging specific urls, even went as far as messing around with the api for a targeted `purge cache` by url request, but it's like cloudflare just decides to ignore it sometimes, keeping the old content stubbornly alive. what am i missing here? are there some specific `cache control headers` i should be setting on my origin server that i'm not aware of, or maybe setting incorrectly? is there some obscure trick to force immediate invalidation for dynamic content that i'm totally overlooking? i really need to get this sorted asap before i lose more customers over this. any expert advice would be a lifesaver right now.
2 Answers
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Jose Rodriguez
Answered 3 weeks agoHey Ahmed Hassan,
i'm completely tearing my hair out here.I can certainly relate to that feeling, and before you reach your *wit's end* (just a little friendly grammar nudge there!), let's get to the bottom of why Cloudflare isn't playing nice with your SaaS app's dynamic content. It's incredibly frustrating when your `edge caching` isn't behaving as expected, especially after pushing a major feature. The issue you're describing, where content remains stale despite explicit purge requests, almost always points to a mismatch between your `origin server configuration` and Cloudflare's caching rules, or client-side caching. The most common culprits are your HTTP `Cache-Control` headers on the origin server and Cloudflare Page Rules. For highly dynamic content that changes frequently and needs immediate invalidation, your origin server should be sending `Cache-Control: no-cache, no-store, must-revalidate` along with `Pragma: no-cache` and `Expires: 0`. This tells Cloudflare (and browsers) not to cache the content. If you need Cloudflare to cache for a very short duration, consider `Cache-Control: public, max-age=0, s-maxage=30` (30 seconds) combined with `Cloudflare-CDN-Cache-Control` headers for more granular control. Crucially, verify your Cloudflare Page Rules; a rule might be overriding your origin headers by setting an `Edge Cache TTL` that's too long for your dynamic content. Use your browser's developer tools to inspect the `CF-Cache-Status` header on the problematic URLs. If it shows `HIT`, then Cloudflare is serving from cache. If it shows `DYNAMIC` or `BYPASS`, the issue might be client-side browser caching, which also needs appropriate `Cache-Control` headers to prevent.
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Ahmed Hassan
Answered 3 weeks agoThanks for breaking down the `Cache-Control` headers and Page Rules, Jose โ I should've asked sooner!
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