Frequently Asked Questions

503 Error

503 error means your server is overloaded. Usually it happens on limited shared hosting, when CPU and/or memory is limited by the hosting provider…

High CPU usage

Usually it happens on small VPS, or limited shared hosting, when CPU is limited by the hosting provider…

Missing Icons

If icons are missing, there are 2 common issues: critical fonts, or improper cache settings…

Missing images

If images are not loaded, usually it is a conflict with lazyloading.

Prebuild cache failed

[Error] Prebuild cache (https:/yoursite.com/) failed. Error code: 500 ( Memory:55.83Mb CPU:1.02% )

Prebuild is not starting

If prebuild cache is not starting, usually the problem is, that default WP Cron is disabled…

Prebuild is slow

Prebuild speed depends on your server resources, complexity of your site (themes/plugins), enabled features (Merge styles, Merge scripts, etc) in order to speed up…

Strange redirects

If you have strange URLs in your analytics or you can see that the site redirects to an URL like this:
https://www.yoursite.com/wp-content/cache/yoursite.com/desktop/unauthenticated/index.html

URLs are missing from Warmup Table

Regarding that too many items can overload the server, and may take too many time to being cached Warmup table can be limited. Default limit is 10 000 items, it can be modified by defining a constant in wp-config.php…