#productperf — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #productperf, aggregated by home.social.
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Time to First Byte (TTFB) is the first time metric to fix.
In the image, we can see a TTFB of 1.88s in the field data, the rest of the time metrics, like FP, FCP, or LCP, start after this time.
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Core Web Vitals Assessment: Failed 🙈
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How large DOM sizes affect interactivity, and what you can do about it
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The Ultimate Guide to Image Optimisation
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What does the image decoding attribute actually do?
https://www.tunetheweb.com/blog/what-does-the-image-decoding-attribute-actually-do/ by @tunetheweb
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Today I'm going to do a "live coding" Web Performance Review, we're going to look at these topics at ISDI Coders MeetUp
https://www.eventbrite.com/e/entradas-web-performance-review-live-coding-652093528297
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How to read a WebPageTest Waterfall View chart
https://nooshu.com/blog/2019/10/02/how-to-read-a-wpt-waterfall-chart/ by @TheRealNooshu
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Check the image format supported by your browser
https://lab.nucliweb.net/image-format-test/
Images
🏞️ JPEG = 61 kB
🌁 WebP = 53 kB
🌄 AVIF = 51 kB
🌃 JPEG-XL = 49 kBBrowsers
🏞️ Chrome v114 = AVIF
🌁 Firefox v114 = AVIF
🌄 Safari v16.5 = AVIF
🌃 Thorium v106 = JPEG-XL -
Waiting for Safari 17 to test the PostCSS plugin to use JXL in the CSS background
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Performance Optimization Strategy in 2023
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I prefer to refer to it as Product Performance instead of Web Performance because it's not only about the web; it's the product that needs improvement