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Web Vitals

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May 15, 2020
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Web Vitals

Web Vitals

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tiwu

May 15, 2020
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Transcript

  1. Web Vitals Wataru Taguchi

  2. How do you measure the speed of your site?

  3. Too Many Tools • Lighthouse • Chrome Dev Tools •

    PageSpeed Insights • Search Console’s Speed Report

  4. Web Vitals

  5. Core Web Vitals • Largest Contentful Paint • First Input

    Delay • Cumulative Layout Shift

  6. measures loading performance

  7. measures Interactivity

  8. measures visual stability

  9. Measure Core Web Vitals

  10. Measure Core Web Vitals in JavaScript

  11. Web Vitals Chrome Extension https://github.com/GoogleChrome/web-vitals-extension

  12. Thank ! https://web.dev/vitals/ https://developers-jp.googleblog.com/2020/05/web-vitals.html