Enable separate mobile cache files
Enable “Separate Cache Files for Mobile Devices” now
Version history
Wording unchanged across v3.16–v3.21.3 (4 builds captured, 2026-06-05 → 2026-06-05). We'll diff it the moment the plugin ships a new wording.More from WP Rocket
every screen
Installation process failed
every screen
Cannot configure itself due to missing writing permissions.
every screen
Cannot configure itself due to missing writing permissions.
every screen
You should either disable Cloudflare APO or check with the theme/plugin requiring the use of “Dynamic Cookies Cache” developers for an alternative way to be page-cache friendly. …More info
every screen
WP Rocket: You are using "Separate cache files for mobile devices". You need to activate "Cache by Device Type" …setting… on Cloudflare APO to serve the right version of the cache. …More info
every screen
Post cache cleared.
every screen
WP Rocket: One or more plugins have been enabled or disabled, clear the cache if they affect the front end of your site.
every screen
Please deactivate the following … option which conflicts with WP Rocket features:
every screen
Enable “Separate Cache Files for Mobile Devices” now
every screen
WP Rocket: We have detected that Autoptimize's JavaScript Aggregation feature is enabled. WP Rocket's Delay JavaScript Execution will not be applied to the file it creates. We suggest disabling …JavaScript Aggregation… to take full advantage of Delay JavaScript Execution.
every screen
WP Rocket: We have detected that Autoptimize's Aggregate Inline CSS feature is enabled. WP Rocket's Load CSS Asynchronously will not work correctly. We suggest disabling …Aggregate Inline CSS… to take full advantage of Load CSS Asynchronously Execution.
every screen
The following plugins are not compatible with this plugin and may cause unexpected results:
every screen
WP Rocket: We detected that the website domain has changed. The configuration files must be regenerated for the page cache and all other optimizations to work as intended. …Learn More
every screen
Could not create the … table in the database which is necessary for the Remove Unused CSS feature to work. Please check our …documentation
every screen
A custom permalink structure is required for the plugin to work properly. …Go to permalinks settings
every screen
For optimal performance, adding the following lines into your .htaccess is recommended (not required):
every screen
Cannot configure itself due to missing writing permissions.
every screen
Cannot configure itself due to missing writing permissions.
every screen
Cannot configure itself due to missing writing permissions.
every screen
Cannot configure itself due to missing writing permissions.
every screen
Is good to go! … Your website is already faster. Visit … Rocket Insights … to check your homepage's performance, add more pages to measure WP Rocket's impact, and keep your site fast.
every screen
The following scheduled events failed to run. This may indicate the CRON system is not running properly, which can prevent some WP Rocket features from working as intended:
every screen
The preload service is now active. After the initial preload it will continue to cache all your pages whenever they are purged. No further action is needed.
every screen
Cannot configure itself due to missing writing permissions.
every screen
Enable “Separate Cache Files for Mobile Devices” now
every screen
Please wait … seconds. The Remove Unused CSS service is processing your pages, the plugin is optimizing LCP and the images above the fold.
every screen
The LCP element has been optimized, and the images above the fold were excluded from lazyload. The Used CSS of your homepage has been processed. WP Rocket will continue to generate Used CSS for up to … URLs per … second(s).
every screen
We couldn't generate the used CSS because you're using a nulled version of WP Rocket. You need an active license to use the Remove Unused CSS feature and further improve your website's performance.
every screen
It seems a security plugin or the server's firewall prevents WP Rocket from accessing the SaaS features. IPs listed …here in our documentation… should be added to your allowlists:
every screen
Enable “Separate Cache Files for Mobile Devices” now
every screen
Your Divi template was updated. Clear the Used CSS if the layout, design or CSS styles were changed.
every screen
Installation process failed
every screen
Cannot configure itself due to missing writing permissions.
every screen
Cannot configure itself due to missing writing permissions.
every screen
You should either disable Cloudflare APO or check with the theme/plugin requiring the use of “Dynamic Cookies Cache” developers for an alternative way to be page-cache friendly. …More info
every screen
WP Rocket: You are using "Separate cache files for mobile devices". You need to activate "Cache by Device Type" …setting… on Cloudflare APO to serve the right version of the cache. …More info
every screen
Post cache cleared.
every screen
The following scheduled events failed to run. This may indicate the CRON system is not running properly, which can prevent some WP Rocket features from working as intended:
every screen
The preload service is now active. After the initial preload it will continue to cache all your pages whenever they are purged. No further action is needed.
every screen
Cannot configure itself due to missing writing permissions.
every screen
Cannot configure itself due to missing writing permissions.
every screen
Cannot configure itself due to missing writing permissions.
every screen
Enable “Separate Cache Files for Mobile Devices” now
every screen
Please wait … seconds. The Remove Unused CSS service is processing your pages, the plugin is optimizing LCP and the images above the fold.
every screen
The LCP element has been optimized, and the images above the fold were excluded from lazyload. The Used CSS of your homepage has been processed. WP Rocket will continue to generate Used CSS for up to … URLs per … second(s).
every screen
We couldn't generate the used CSS because you're using a nulled version of WP Rocket. You need an active license to use the Remove Unused CSS feature and further improve your website's performance.
every screen
It seems a security plugin or the server's firewall prevents WP Rocket from accessing the SaaS features. IPs listed …here in our documentation… should be added to your allowlists:
every screen
Enable “Separate Cache Files for Mobile Devices” now
every screen
) ); # Print notice. echo
every screen
For optimal performance, adding the following lines into your .htaccess is recommended (not required):
every screen
Cannot configure itself due to missing writing permissions.
every screen
Cannot configure itself due to missing writing permissions.
every screen
Cannot configure itself due to missing writing permissions.
every screen
Cannot configure itself due to missing writing permissions.
every screen
Is good to go! …Test your load time…, or visit your …settings
every screen
Post cache cleared.
every screen
Starting from … 3.20, you can track your key pages’ performance directly from your dashboard and get in-depth insights.
every screen
Cannot configure itself due to missing writing permissions.
every screen
The following code should have been written to this file:
every screen
The following code should have been written to this file:
every screen
Please wait … seconds. The Remove Unused CSS service is processing your pages.
every screen
The Used CSS of your homepage has been processed. WP Rocket will continue to generate Used CSS for up to … URLs per … second(s).
every screen
A custom permalink structure is required for the plugin to work properly. …Go to permalinks settings
every screen
every screen
every screen
every screen
Action Scheduler:past-due actions found; something may be wrong. Read documentation »