GTmetrix VS Pingdom VS Google PageSpeed Insights VS Lighthouse

GTmetrix VS Pingdom VS Google PageSpeed Insights VS Lighthouse Best performance optimization

Which one is best performance and optiztional free tool 2020 GTmetrix VS Pingdom VS Google PageSpeed Insights(Google Test Speed) VS Lighthouse Best performance optimization GTmetrix | Pingdom | Google Test Speed | Google Lighthouse – Website Speed and Performance Optimization 100% website speed score 1. https://developers.google.com/speed/pagespeed/insights/ 2. https://chrome.google.com/webstore/detail/lighthouse/blipmdconlkpinefehnmjammfjpmpbjk?hl=en 3. https://gtmetrix.com/ 4. https://tools.pingdom.com/