Diagnostics Overview

The Diagnostics module provides information about common optimization tips that can improve your site performance significantly. You can see the Performance tips and Suggestions view by navigating to Administration->Diagnostics->Overview.

The Performance optimization tips section provides an overview of common settings that affect website performance. Use it to view the current state of the settings as well as the overall degree to which you have optimized your website performance.

In this view you can gather the status of the following settings along with detail information about the effect that they have on the performance of your site and recommendations how to modify the settings to improve performance:

• Output cache
• Client cache
• L2 cache
• Cache for pages
• Cache for libraries
• Client cache for themes
• Output cache for RSS
• Output cache and page permissions
• Debug mode
• CDN for libraries
• Scripts combining for frontend
• Scripts combining for backend
• Stylesheet combining
• Static content compression
• Dynamic content compression

Clicking Show Insights provides suggestions for improving the performance based on the data collected from profilers. These suggestions are calculated based on analysis of the data logged in the Diagnostics module and depends on your settings and the current site usage.

The suggestion engine analyzes data about the following:

• If the same background tasks are executed multiple times for a module which you do not use actively, we would provide information about it. Also you will see suggestion how to reduce the waste of those resources.
• If the same pages has been compiled multiple times. Based on this information you can consider how to decrease the compilations count thus you will improve the site performance.
• Information about the page execution. Based on this data you can consider changing cache profile settings for the particular pages.