Dynamics 365 CRM provides an out of the box diagnostics test option. This could be useful if there is a requirement to test the NFRs ( Non-functional Requirements) against Dynamics 365 CRM. If you are not familiar with NFRs here is a simple definition for you
"Non-functional testing is done to verify the non-functional requirement of the application like Performance, Usability, etc."
Ref: https://www.softwaretestinghelp.com/what-is-non-functional-testing/
Navigate to this url -https://myorg.crm.dynamics.com/tools/diagnostics/diag.aspx
Note : myorg should be replaced with your organisation name.
Here is a sample run on my D365 CRM trial organisation. And yes, just need to click on that Run button!
Here is the sample result.
Ref: Microsoft Documentation
https://docs.microsoft.com/en-us/power-platform/admin/verify-network-capacity-throughput-clients