Does your website use third-party services? Get GDPR compliant in minutes.
Try FlowConsentFree plan · 10-min setup
WP Fastest Cache is a popular WordPress caching plugin developed by Emre Vona. It improves page-load performance by serving pre-built static HTML to non-logged-in visitors, with optional minification of CSS/JS, browser cache control, CDN integration and image optimisation. The plugin itself does not place any analytics or tracking cookies on visitors; its only outbound traffic is license verification with wpfastestcache.com servers in Turkey. From a GDPR perspective, WP Fastest Cache has a very low compliance footprint and does not normally require user consent.
WP Fastest Cache is a widely installed WordPress caching plugin (over a million active installations) that generates static HTML versions of dynamic WordPress pages, then serves them quickly to non-logged-in visitors. It includes CSS/JS minification, GZIP compression, browser caching, and a paid Premium tier with image WebP conversion and database optimisation.
The plugin processes the rendered HTML output, stores cached files in wp-content/cache, and serves these files in response to visitor requests. No visitor identifiers, cookies or behavioural data are captured. For paid licenses, the plugin periodically pings wpfastestcache.com with the site URL and license key for activation and updates.
WP Fastest Cache does not set cookies on visitors and does not access information on their devices, so Art. 5(3) ePrivacy does not apply. There is no requirement to obtain consent. The processing of cached HTML is justified by legitimate interest in performance. The plugin must be configured to respect cookies set by your CMP, however, so that a logged-in or consented visitor is not served stale cached content.
Get GDPR compliant in 10 minutes
Free plan available · No credit card required
License verification and update checks for paid versions transmit the site URL and license key to wpfastestcache.com servers in Turkey. Turkey is not on the EU adequacy list, so the transfer requires Standard Contractual Clauses. The information transferred is minimal (admin URL and license key, no visitor data), so the impact is low.
A common pitfall is that the cache serves a version of the page that already includes tracking scripts before the visitor has consented. Configure your CMP to load before the cache, or use server-side consent that conditionally renders tracking scripts. Exclude consent cookies from cache key generation so they are honoured even when serving cached HTML.
1. Document WP Fastest Cache in your Record of Processing Activities as a technical measure. 2. Sign or accept the developer''s standard terms with SCCs for the Turkey license transfer. 3. Mention the plugin in your privacy notice if listing all sub-processors. 4. Test the CMP and cache interaction so consent is respected. 5. Use OCSP stapling and other security best practices alongside the cache.
Websites using WP Fastest Cache must obtain user consent under GDPR regulations.
DPIA considerations
WP Fastest Cache operates server-side and stores static HTML in a cache folder. From a personal data perspective: (1) the cache itself may capture personal data (e.g. cached author name, comment counts) but this data was already published; (2) the optional CDN integration (Cloudflare, BunnyCDN) introduces additional processing terms; (3) the premium license check sends the site URL and license key to wpfastestcache.com in Turkey, requiring SCCs in absence of an adequacy decision; (4) the plugin can interfere with cookie-based consent banners if the cache is too aggressive, so cache invalidation rules must be set per CMP. A DPIA is not normally required.
Sample consent text
This site uses WP Fastest Cache, a WordPress performance plugin that serves pre-built static pages to speed up your browsing. It does not place tracking cookies or personalise content. No consent is required for its operation. License verification with the developer in Turkey is covered by Standard Contractual Clauses in our processing terms.
Third-party domains contacted
wpfastestcache.comlicense.wpfastestcache.comupdate.wpfastestcache.comCookies placed
| Name | Type | Duration | Purpose |
|---|---|---|---|
| wordpress_logged_in_<hash> | Strictly necessary | Session or 14 days | Standard WordPress login cookie that lets the plugin skip caching for authenticated users so they see fresh content. |
| wpfc_cache_excluded | Strictly necessary | Session | Internal flag used to mark requests that should bypass the cache, e.g. POST submissions, cart updates and consent banner interactions. |
WP Fastest Cache collects user analytics data — you legally need a consent banner. Try FlowConsent free.
No. WP Fastest Cache is a server-side caching plugin and does not place cookies on visitors' browsers. WordPress itself may set session cookies for logged-in users, but those are unrelated to the cache.
No. Because no cookies are placed and no information is read from the visitor's device, Art. 5(3) ePrivacy does not apply.
Legitimate interest (Art. 6(1)(f) GDPR) for performance optimisation. The processing is limited to internal caching of already-rendered HTML.
Yes, the license verification and update check send the site URL and license key to wpfastestcache.com servers in Turkey. Turkey is not on the EU adequacy list, so the transfer needs SCCs. Visitor data is not part of this transfer.
No, a DPIA is not normally required for a caching plugin. Document the plugin as a technical measure in your Record of Processing Activities.
Configure exclusions for CMP cookies and logged-in users; ensure tracking scripts are loaded conditionally based on consent; review the developer's privacy terms; document SCCs for the Turkey license transfer.
Other caching plugins: W3 Total Cache (US), WP Rocket (France, EU-hosted), LiteSpeed Cache (US), Cache Enabler (Germany, free) and SG Optimizer (Bulgaria). WP Rocket and Cache Enabler are EU-native alternatives.
A brief mention is enough: list the plugin as a technical measure used to improve performance and disclose the SCCs for the licensing relationship with the developer in Turkey. No cookie policy update is required.