• Speed Score
• Usability Score
This number is generated on the basis of x-1.jp content analysis. Do all UI elements fit the mobile viewport? Are all links and buttons located not too close to each other? The algorithm tries to answer these questions and give an estimated score.
• For more explanation and detailed report please visit https://developers.google.com/speed/pagespeed/insights/
Check out these available alternatives for x-1 name