Test if themes are outdated, or unnecessary.
WP_Site_Health::get_test_php_version
Test if the supplied PHP version is supported.
WP_Site_Health::test_php_extension_availability
Check if the passed extension or function are available.
WP_Site_Health::has_missed_cron
Check if any scheduled tasks have been missed.
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WP_Site_Health::has_late_cron
Check if any scheduled tasks are late.
WP_Site_Health::can_perform_loopback
Run a loopback test on our site.
WP_Site_Health::maybe_create_scheduled_event
Create a weekly cron event, if one does not already exist.
WP_Site_Health::wp_cron_scheduled_check
Run our scheduled event to check and update the latest site health status for the website.
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WP_Site_Health::get_cron_tasks
Populate our list of cron events and store them to a class-wide variable.
WP_Site_Health::get_test_php_default_timezone
Test if the PHP default timezone is set to UTC.
WP_Site_Health::get_test_sql_server
Test if the SQL server is up to date.
WP_Site_Health::get_test_utf8mb4_support
Test if the database server is capable of using utf8mb4.
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WP_Site_Health::get_test_dotorg_communication
Test if the site can communicate with WordPress.org.
WP_Site_Health::get_test_is_in_debug_mode
Test if debug information is enabled.
WP_Site_Health::get_test_https_status
Test if your site is serving content over HTTPS.