Test if debug information is enabled.
WP_Site_Health::get_test_https_status
Test if your site is serving content over HTTPS.
WP_Site_Health::get_test_ssl_support
Check if the HTTP API can handle SSL/TLS requests.
WP_Site_Health::get_test_scheduled_events
Test if scheduled events run as intended.
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WP_Site_Health::get_test_background_updates
Test if WordPress can run automated background updates.
WP_Site_Health::prepare_sql_data
Run the SQL version checks.
WP_Site_Health::check_wp_version_check_exists
Test if `wp_version_check` is blocked.
WP_Site_Health::get_test_wordpress_version
Tests for WordPress version and outputs it.
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WP_Site_Health::get_test_plugin_version
Test if plugins are outdated, or unnecessary.
WP_Site_Health::get_test_theme_version
Test if themes are outdated, or unnecessary.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.
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WP_Site_Health::get_test_php_extensions
Test if required PHP modules are installed on the host.
WP_Site_Health_Auto_Updates::test_if_failed_update
Check if automatic updates have tried to run, but failed, previously.
WP_Site_Health::get_test_sql_server
Test if the SQL server is up to date.