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If Cloudflare is caching a WordPress login, account, cart, or checkout page, the fix is usually to make sure the request is excluded from caching—and that no later rule overrides the exclusion. Check the actual paths, cookies, and response headers involved; WordPress alone does not guarantee that dynamic HTML will bypass cache.
Why Cloudflare can cache a dynamic WordPress page
Cloudflare can cache WordPress HTML through Automatic Platform Optimization (APO) under specific eligibility conditions. The result depends on factors including the request method, HTML headers, cookies, path, query string, response headers, and applicable Page Rules. A custom rule that makes HTML eligible for caching can therefore expose pages that should remain personalized.
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Cloudflare’s WordPress guidance describes edge caching for anonymous page views while bypassing cache for logged-in visitors and WooCommerce activity. That behavior should not be treated as a blanket safeguard for every custom Cache Rule: the request must meet the relevant feature’s conditions, including carrying the expected cookie when a cookie-based exclusion is involved. Cloudflare’s WordPress performance guidance and its APO documentation describe these feature-specific behaviors.
Which paths and requests should bypass cache?
Start with the routes your site actually uses. Common dynamic paths include login, account, cart, and checkout pages, but plugins and custom applications may use different routes or API endpoints. A rule that excludes only the defaults can miss the path where personalized or session-dependent content is served.
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- Login routes and authentication responses.
- Account or profile pages shown to an identified visitor.
- WooCommerce cart and checkout routes.
- Application API paths that return user-specific data or update a session.
- Requests carrying cookies that identify a logged-in user or active cart.
Cloudflare recommends bypassing cache for dynamic content such as login and account pages. Review its dynamic-content and login troubleshooting guidance alongside your site’s real routes.
Common cache-bypass mistakes
A broad cache rule makes dynamic HTML eligible
A site-wide rule that marks responses eligible for cache can include HTML pages that must remain dynamic. An Edge TTL or status-code TTL override can make the problem worse by forcing storage even when the origin’s normal cache instructions would not allow it.
Cloudflare describes a login failure in which a cacheable response is stored and its Set-Cookie header is removed, leaving the browser without the session cookie needed for a subsequent request. Check whether broad eligibility or a TTL override applies to the affected route. Keep cache eligibility limited to appropriate static paths, or add a more specific bypass for dynamic paths and API endpoints. Avoid forcing an Edge TTL when the origin must control whether a response is stored. See Cloudflare’s explanation of dynamic-content and login issues.
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APO has documented cookie-prefix exclusions, including prefixes beginning with wordpress and woocommerce_. Those are APO behaviors; they do not automatically apply to every custom Cache Rule. A custom configuration should explicitly bypass requests that match the site’s relevant cookies when needed.
Cloudflare’s Cache Rules support matching the Cookie field and setting cache eligibility to Bypass cache. Its Bypass Cache on Cookie example shows the approach, and the Cache Rules settings reference explains the available controls.
You treat every query parameter as harmless
APO generally bypasses cache for URLs with query parameters, except when the parameters are on its supported marketing-parameter allowlist. The list includes attribution parameters such as utm_source, utm_campaign, and gclid. A site-specific parameter that changes the content or user state is not equivalent to tracking metadata. These query-string behaviors are specific to APO; do not assume a custom Cache Rule follows them. See APO’s query-parameter reference.
A later matching rule undoes the bypass
Cache Rules can stack. When multiple matching rules set the same setting, the last matching rule wins. A specific bypass can therefore be reversed by a broad rule that matches later. Review the order and conditions of every rule matching the same host and path, including legacy Page Rules. Cloudflare explains this behavior in its Cache Rules order and priority documentation.
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How to diagnose and correct the problem
- Reproduce the affected request. Test the exact URL and request type. Separate an anonymous page visit from a logged-in visit and from a form submission; they may trigger different cache behavior.
- Inspect the response. Check
CF-Cache-Status,Set-Cookie, and the origin’sCache-Controlheader. For a login response, a cache status such asHITorEXPIREDtogether with a missing expected session cookie is a warning sign. Cloudflare’s login troubleshooting guidance describes this symptom. - Audit all matching rules. Check cache eligibility, Edge TTL and status-code TTL overrides, path and cookie conditions, legacy Page Rules, and rule order. Do not inspect only the rule that appears to contain the bypass.
- Make the exclusion specific to the dynamic request. Add or correct bypasses for the site’s login, account, cart, checkout, and application API paths as applicable. If cookie matching is necessary, use a condition that matches the cookies the relevant requests actually carry.
- Check APO separately if it is enabled. Confirm its path exclusions, documented cookie behavior, and query-parameter handling rather than assuming those protections govern custom Cache Rules.
- Retest the same route and session behavior. Confirm that the personalized response is not served from cache and that the expected session cookie is preserved. Recheck headers on the affected route after changing rules.
What the cache status tells you
Non-HIT responses do not all mean the same thing. Cloudflare defines DYNAMIC as a request-time decision that the asset is not eligible for a cache lookup. BYPASS can mean the request was eligible, but the response or its cache-control instructions prevented storage. In Cloudflare’s words, “DYNAMIC is only returned when Cloudflare determines the asset is not eligible for cache at request time.” See the cache response status reference.
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Use the status together with the response headers and the observed browser behavior. For example, a personalized login response served as a cache hit while its expected Set-Cookie is absent points to a different problem than a request that Cloudflare marks DYNAMIC.
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