Scheduled Post Guardian

Scheduled Post Guardian is a plugin for site owners who rely on timed content publishing but have experienced posts failing to go live on schedule. It runs automatically after each WordPress request, checking a timer and verifying that all scheduled posts are either published or properly rescheduled. No configuration or user interface is needed—activate it and it works in the background.

• Automatic missed-schedule recovery: If a scheduled post fails to publish due to cron issues or other interruptions, the plugin detects it and triggers the core publishing function to correct the status.
• Efficient checking intervals: By default, the plugin checks every 3 minutes. If no scheduled posts exist, it extends the delay to 15 minutes to reduce server load. Both intervals can be customized via filters (scheduled_post_guardian_delay_minutes and scheduled_post_guardian_stretch_delay_minutes).
• Zero setup required: There is no settings page or dashboard widget. Simply install and activate the plugin, and it begins monitoring immediately.
• Lightweight operation: The plugin runs only on shutdown and uses minimal resources, making it suitable for shared hosting environments.
• Compatible with recent versions: Tested up to WordPress 5.8 and requires at least version 3.8, ensuring broad compatibility with existing sites.