#Usefule articles https://michaljanaszek.com/blog/test-website-performance-with-puppeteer/#firstMeaningfulPaint https://github.com/addyosmani/puppeteer-webperf#first-contentful-paint https://www.webpagetest.org/result/200812_WN_6b4cd37773fee3e0a186d6aac0f63d16/ https://github.com/raharrison/puppeteer-perf/blob/master/measure/measurePageLoad.js https://medium.com/@e_mad_ehsan/getting-started-with-puppeteer-and-chrome-headless-for-web-scrapping-6bf5979dee3e https://silentimp.github.io/performance/index.html#slide-13