WP_Site_Health::get_test_php_version()
Test if the supplied PHP version is supported.
WordPress File wp-admin/includes/class-wp-site-health.php
WP_Site_Health::get_test_plugin_theme_auto_updates()
Test if plugin and theme auto-updates appear to be configured correctly.
WP_Site_Health::get_test_plugin_version()
Test if plugins are outdated, or unnecessary.
WP_Site_Health::get_test_rest_availability()
Test if the REST API is accessible.
WP_Site_Health::get_test_scheduled_events()
Test if scheduled events run as intended.
WP_Site_Health::get_test_sql_server()
Test if the SQL server is up to date.
WP_Site_Health::get_test_ssl_support()
Check if the HTTP API can handle SSL/TLS requests.
WP_Site_Health::get_test_theme_version()
Test if themes are outdated, or unnecessary.
WP_Site_Health::get_test_utf8mb4_support()
Test if the database server is capable of using utf8mb4.
WP_Site_Health::get_test_wordpress_version()
Tests for WordPress version and outputs it.