Barry Pollard

Have Core Web Vitals made the web faster?

https://calendar.perfplanet.com/2021/have-core-web-vitals-made-the-web-faster/

Barry dives into data from HTTP Archive to show how Google's push for web performance with Core Web Vitals helped — or not 😅 — improve the performance of the Web.

There have been lots of success stories which would suggest that yes it has, but this Christmas Grinch is less convinced…

I would like to thank Barry for adding Speed Index in HTTP Archive reports, it's still one of my favorite metrics when I need to show something visual and easy to grasp to people without technical knowledge.

• older link:
  Why designers should move from px to rem - and how to do that in Figma
• newer link:
  Encyclopedia Of Broken UserAgent String Detections

---

Related contents with similar topics

1. • Nicolas Hoizey
   • 21 March 2023
   • Core Web Vitals, Google, WebPerf
   • 3 reactions
   • permalink

   Looks like Google likes it when we start improving websites performance! 🚀

   

2. • Nicolas Hoizey
   • 27 January 2023
   • CLS, Core Web Vitals, WebPerf
   • 1 reaction
   • permalink

   I have a client site with a header that is hidden when the user scrolls down, but shown again when the user scrolls up, which seems pretty comon nowadays.

   This triggers some CLS, even if the hide/show is done in less than 500 ms, as “continuous interactions such as scrolls, drags, or pinch and zoom gestures are not considered ‘recent input’”. 😞

3. 

   Kevin Farrugia

   Priority Hints and optimizing LCP

   • Nicolas Hoizey
   • 3 January 2023
   • WebPerf, priority, LCP, Core Web Vitals
   • 2 reactions

   Increasing the priority of a resource usually comes at the cost of another resource, so Priority Hints should be used sparingly. However, if the browser is queuing your LCP image, I recommend you experiment with Priority Hints to see if you can reduce this waiting time and improve your LCP.

4. • Nicolas Hoizey
   • 12 December 2022
   • Core Web Vitals, WebPerf
   • 3 reactions
   • permalink

   Of course we don't work on performance improvements only for Google, but the Search Console is our clients' main concern, so when it shows such a graph, it's satisfying for everyone! 🎉

   

5. • Nicolas Hoizey
   • 26 October 2022
   • Core Web Vitals, Eleventy, LCP, WebPerf
   • 15 reactions
   • permalink

   If you use #Eleventy and know how to add fetchpriority="high" on your Largest Contenful Paint image, I made a plugin that adds a <link rel="preload"…> for it, even it it's responsive: https://github.com/nhoizey/eleventy-plugin-auto-preload

   Feedback welcome! 🙏