Measure Speed of Website Login Process

Good Morning,
I would like to measure the time it takes for my users to access the companies login portal from one page to another. ie

  1. Welcome Page - entering username and password
  2. Page to enter - OTP
  3. Final Portal page
    At the moment the “Speed” section is only showing me the corporate website and not the login portal i wanted to measure.
    Can I change the monitoring to another website? (DNS records are also held on Cloudflare)
    Thanks

Use Webpagetest.org

Thank you for this however this site only shows the access to the first page. I would like to also enter test credentials. Click submit, Enter the OTP and then click submit. Can i also do this with webpagetest.org?

Use Chrome Lighthouse tool to do manually.

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