The Listeo Site Health (click Listeo Health in admin toolbar) page provides a diagnostic dashboard for monitoring your WordPress site’s technical status and resolving issues quickly.

Quick Stats & Plugin Versions

Shows version information for PHP, WordPress, and Listeo theme with color-coded status indicators (green = good, yellow = warning, red = critical).

Monitors essential Listeo plugins and flags version mismatches. Keep all plugins updated to maintain compatibility.

Memory Usage

Tracks server resource consumption including WordPress memory, PHP memory, execution time, and upload limits. Visual bars show usage percentages.
Common issues with too low memory limit:

  • Fatal error: Allowed memory size exhausted – The classic white screen with memory error message
  • Plugin activation failures – Plugins won’t activate or suddenly deactivate themselves
  • Admin dashboard won’t load – Blank pages or incomplete loading in wp-admin area
  • Media upload failures – Can’t upload images or files, especially larger ones
  • White screen of death – Completely blank pages on frontend or backend
  • Elementor not loading and asking for safe mode

WordPress Heartbeat API

WordPress Heartbeat API runs frequent admin-ajax.php requests that can cause server overload and high CPU usage. The API performs tasks on a “tick” interval utilizing admin-ajax.php across the dashboard, post editor, and frontend areas.

Debug & Error Management

Controls debugging features and displays recent error logs. Quick action buttons:

  • Enable Full Debug Mode – For troubleshooting
  • Turn Off All Debug – For production sites
  • Log Errors Only – Records errors without public display
  • Hide Frontend Errors – Prevents visitor-facing error messages

Email Configuration

Monitors email delivery method and provides testing tools. PHP Mail method is unreliable – install an SMTP plugin for better delivery.

Transient Cache

Post Revision

Pages & Database tables