Method: Checks if the current environment type is set to ‘development’ or ‘local’.

Method: Tests if the Authorization header has the expected values.

Method: Check for potential issues with plugin and theme auto-updates.

Method: Test if plugin and theme auto-updates appear to be configured correctly.

Method: Test if ‘file_uploads’ directive in PHP.ini is turned off.

Method: Test if there’s an active PHP session that can affect loopback requests.

Method: Create a weekly cron event, if one does not already exist.

Method: Run our scheduled event to check and update the latest site health status for the website.

Method: Test if the PHP default timezone is set to UTC.

Method: Return an instance of the WP_Site_Health class, or create one if none exist yet.

Method: Run a Site Health test directly.

Method: Check if any scheduled tasks are late.

Method: Run a loopback test on our site.

Method: Test if WordPress can run automated background updates.

Method: Test if loopbacks work as expected.

Method: Test if HTTP requests are blocked.

Method: Test if the REST API is accessible.

Method: Return a set of tests that belong to the site status page.

Method: Add a class to the body HTML tag.

Method: Initiate the WP_Cron schedule test cases.

Method: Populate our list of cron events and store them to a class-wide variable.

Method: Check if the HTTP API can handle SSL/TLS requests.

Method: Check if any scheduled tasks have been missed.

Method: Test if scheduled events run as intended.

Method: Test if the supplied PHP version is supported.

Method: Check if the passed extension or function are available.

Method: Test if required PHP modules are installed on the host.