Julian Betancourt11,466 Points
Analyze local development performance
What if my project is still being developed. How can I test the performance without publishing the website?
Have you looked at http://www.jamescryer.com/2014/06/12/grunt-pagespeed-and-ngrok-locally-testing/ ?
Also, you can push up a staging or dev instance of you project, e.g. staging.project-name.com or on heroku or something similar, and run the test there. If you dont want google and the bunch indexing your site in their results, than throw in a robots.txt file.
Nathan Heffley19,878 Points
I'm sure there are tools that allow you to do this in some way, but if you are developing locally then any tests you run aren't going to be very reliable. Requests and downloads will happen much, much faster than they will happen when the site is being hosted. Maybe you could get a site that you don't publish/announce anywhere and that you use for testing performance. That's what I do.