Automate Performance Boosts Using Experiments
WebPageTest just launched new features where you can run a new test with fixes applied to see how they'll affect your Core Web Vitals. @scottjehl will teach us how it works.
0:00:00 - Welcome
0:00:23 - What is Web Page Test?
0:01:47 - Guest introduction
0:04:33 - What is happening behind the scenes with Web Page Test?
0:07:56 - How do you use metrics to decide what to do?
0:13:05 - Dealing with first input delay
0:23:05 - Testing code changes without changing code?
0:33:05 - What have they introduced recently?
0:41:32 - What should we test?
0:56:38 - Viewing it with CSS inline
1:07:40 - An example of the worst performing web page
1:17:40 - Create experiments tool
1:22:10 - Where to find out more about WebPageTest?
Demo: https://www.webpagetest.org/result/22...
Links
https://blog.webpagetest.org/posts/in...
https://www.learnwithjason.dev/
/ scottjehl
https://www.webpagetest.org/
https://www.webpagetest.org/themetric...
/ 1536689811473543172
/ realwebpagetest
/ webpagetest
Watch future episodes live at / jlengstorf
This episode was sponsored by:
Netlify (https://lwj.dev/netlify)
Nx (https://lwj.dev/nx)
Backlight (https://lwj.dev/backlight)
Live transcription by White Coat Captioning (https://whitecoatcaptioning.com/)
Credits:
Local Elevator by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...)
Source: http://incompetech.com/music/royalty-...
Artist: http://incompetech.com/
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Additional sound effects obtained from https://www.zapsplat.com
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