Tammy Everts

Why you need to know your site's performance poverty line (and how to find it)

https://www.speedcurve.com/blog/web-performance-poverty-line/

The performance poverty line is the plateau at which changes to your website’s rendering metrics (such as Start Render and Largest Contentful Paint) cease to matter because you’ve bottomed out in terms of business and user engagement metrics.

• older link:
  The next generation image format for the web is not JPEG XL?
• newer link:
  JPEG XL vs AVIF: A Comparison

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Related contents with similar topics

1. • Nicolas Hoizey
   • 26 October 2022
   • image, SpeedCurve, WebPerf
   • 9 reactions
   • permalink

   This is what happens when you preload the heavy high definition pristine image instead of the responsive version… 😅

   

   Thanks #SpeedCurve for noticing it! 🙏

2. • Nicolas Hoizey
   • 25 June 2020
   • SpeedCurve, TIL, WebPerf
   • 1 reaction
   • permalink

   TIL:

   Paint timing metrics are too optimistic. In 85-95% of cases, they are recorded before any pixels are actually rendered to the screen.

   From @Joseph_Wynn's article for #SpeedCurve: https://speedcurve.com/blog/an-analysis-of-chromiums-paint-timing-metrics/

3. Can we monitor User Happiness on the Web with performance tools?

   • Nicolas Hoizey
   • 10 January 2020
   • WebPerf, SpeedCurve
   • 27 reactions

   I really like that SpeedCurve tried to innovate with this recent "User Happiness" metric (original version). It aggregates multiple technical metrics to decide if users visiting the page are happy or not with it. But I see several issues in this metric.