Installing and using the Query Monitor plugin

The Query Monitor plugin is a developer tool that helps you debug and analyze WordPress performance. It provides detailed information about database queries, hooks, PHP errors, and more. On ruachost.com, you can install and use Query Monitor to troubleshoot slow pages and optimize your site.

Why Use Query Monitor?

• Identify slow or duplicate database queries.

• Debug PHP errors, notices, and warnings.

• Monitor hooks, actions, and filters.

• Track enqueued scripts and styles.

• Analyze REST API calls and AJAX requests.

Installing Query Monitor

1. Log in to WordPress as the administrator.

2. In the dashboard, go to Plugins → Add New.

3. Search for Query Monitor.

4. Click Install Now, then Activate Plugin.

✅ Query Monitor is now installed.

⚙️ Using Query Monitor

1. Access the Toolbar.

   • After activation, Query Monitor adds a new menu to the WordPress admin toolbar.

   • Click the Query Monitor icon to open the panel.

2. View Database Queries.

   • See all queries executed on the current page.

   • Identify slow queries and duplicates.

3. Check PHP Errors.

   • Monitor notices, warnings, and fatal errors.

   • Helps developers quickly locate problematic code.

4. Analyze Hooks and Actions.

   • View which hooks are triggered on each page load.

   • Useful for debugging plugin and theme conflicts.

5. Inspect Scripts and Styles.

   • Track enqueued CSS and JavaScript files.

   • Detect dependencies and loading order issues.

6. Monitor REST API and AJAX.

   • Debug API calls and responses.

   • Identify performance bottlenecks in dynamic requests.