Chrome Dev-Tools

• Google Chrome Developer Tools Crash Course
• Inspect Network Activity
  • Video: Inspect Network Activity - Chrome DevTools 101
  • Network features reference
  • Filter requests by properties

Tools to measure page speed/performance

• Lighthouse
• WebPageTest
  • WebPageTest contains an advanced suite of metrics and trace viewers.
  • It enables deep diving into the performance of your site on real mobile hardware with network conditions.
• TestMySite
  • Use TestMySite to test your page’s mobile loading time alongside industry benchmarks
  • And to learn how simple fixes can speed up your site and decrease visitor loss;
  • TestMySite is currently powered by WebPageTest and PageSpeed Insights.
• PageSpeed Insights
• Speed Scorecard
• Impact Calculator
  • Use the Impact Calculator to estimate the potential revenue opportunity of improving your mobile site speed. Impact is driven by benchmark data from Google Analytics.
• Chrome Developer Tools