Gaining a competitive advantage requires professional insight, but knowing where you stand doesn’t. The free application is currently offline. It resulted out of a vlog series where I was trying to demonstrate using Scrum processes in a one man project.
You can add a list of websites to compare. Ratings are on a scale of 0 to 100, and any site 80+ considered as excellent. Back in 2015 it was reported that over 50% of searches on Google now happen on mobile, so having a good mobile experience is critical and outweighs page speed.
If you are interested in the tool, please get in touch.