Announcing availability of the Page Diagnostics Tool for SharePoint
Published Jun 28 2018 11:56 AM 28.3K Views

Today we’re pleased to announce availability of the Page Diagnostics Tool for SharePoint.  The Page Diagnostics Tool for SharePoint is a Chrome Browser Extension designed to help you identify potentially problematic Classic pages in SharePoint Online that may not be delivering optimal performance based on characteristics discovered about the page by the Page Diagnostics Tool. 


The Page Diagnostics Tool works by comparing discovered characteristics of one or more Classic pages in SharePoint Online to known best practices and provides guidance to remediating those issues to ensure you are delivering the best possible experience across these pages.  In addition to addressing performance of existing pages, the Page Diagnostics Tool can also be used to evaluate existing pages before they are published in your environment.


The Page Diagnostics Tool is currently available as a Chrome Browser Extension that can be downloaded directly or installed through the Chrome web store.


For additional information on installing and using the Page Diagnostics Tool, refer to the getting started guide  


The Page Diagnostic Tool also provides detailed information on a variety of characteristics useful for support and troubleshooting purposes to include the current CorrelationID, SPRequestDuration, SPIISLatency, page load time, and the current Url evaluated.  For information on how to use this information, refer to support documentation for the Page Diagnostics Tool at



The baseline rules currently evaluated by the Page Diagnostics Tool are detailed below.  Each rule has an associated “more info” link which will take you to the supporting page providing more insights on the rule.





  1. Check Running as Standard User
  2. Check Requests to SharePoint
  3. Check using CDNs
  4. Check for Large Image Sizes
  5. Check for Structural Navigation
  6. Check for CBQ WebPart (CBQ - Content by Query WebPart)


For additional information on using the Page Diagnostics Tool and in-product help, you can also use the About link in the tool to get links to the “How to use this tool”, “Tune SharePoint Online Performance”, “Third Party Notice” in addition to a link to “give feedback” which links to the tools and extensions section in User Voice.






We look forward to your feedback as we continue to consider scenarios for future versions of the Page Diagnostics Tool for SharePoint.

Version history
Last update:
‎Jun 28 2018 11:59 AM
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