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/
