The Page Diagnostic Tool (V2.0) is a browser extension for Chrome and Microsoft Edge version 77 and later that analyzes both SharePoint Online modern portal and classic publishing site pages.
New in Version 2 is support for Modern Portal Pages.
The tool does not make any changes but rather highlights recommended practices. Reducing the server time and load on SQL within SharePoint is an important part of maintaining consistent performance with SharePoint and in particular SharePoint Online especially considering the performance optimizations Microsoft has made. The tool will highlight some of the optimizations and recommend utilizing these available resources.
Each recommended practice also has a “more info” link to direct you to the right resource to assist you.
More information on how to use the tool can be found in the following article:
This extension supports SharePoint Online and is not designed for SharePoint on-Premises.
You can download the extension from the Chrome Browser WebStore through the following direkt link: