We'll create fresh WordPress site with Manual Cron installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Execute WP-cron manually by clicking a button on the Dashboard.
WP-cron is WordPress’ scheduler system, it can execute background jobs like plugin updates.
Manual Cron is a Dashboard widget available for every user.
If you have poorly written plugins WP-cron’s output may not be empty.
Development goes on on GitHub.