Google PageSpeed Insights can analyze how your web pages are running and provide solutions to improve operation and load time. I tested: Page Speed Score 100% - 1% 99% - 3-8% (inclusiv Google) 96-98% - 7-12% 90-96% - 12-15% I tested 1000 website. You can test here: https://developers.google.com/speed/pagespeed/insights