Joan Leon · @nucliweb
127 followers · 274 posts · Server webperf.social
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.
#webperf #productperf #Performance #CoreWebVitals #ttfb
Joan Leon · @nucliweb
121 followers · 254 posts · Server webperf.social
Core Web Vitals Assessment: Failed 🙈
#webperf #productperf #Performance #uxperf #CoreWebVitals
Joan Leon · @nucliweb
119 followers · 250 posts · Server webperf.socialHow large DOM sizes affect interactivity, and what you can do about it
#webperf #productperf #Performance
Joan Leon · @nucliweb
116 followers · 245 posts · Server webperf.socialWhat does the image decoding attribute actually do?
https://www.tunetheweb.com/blog/what-does-the-image-decoding-attribute-actually-do/ by @tunetheweb
#webperf #productperf #ImagePerf
Joan Leon · @nucliweb
115 followers · 238 posts · Server webperf.social
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
#webperf #productperf #perftools #perfreview
Joan Leon · @nucliweb
112 followers · 234 posts · Server webperf.socialHow to read a WebPageTest Waterfall View chart
https://nooshu.com/blog/2019/10/02/how-to-read-a-wpt-waterfall-chart/ by @TheRealNooshu
#webperf #perftools #productperf
Joan Leon · @nucliweb
112 followers · 233 posts · Server webperf.social
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 kB
Browsers
🏞️ Chrome v114 = AVIF
🌁 Firefox v114 = AVIF
🌄 Safari v16.5 = AVIF
🌃 Thorium v106 = JPEG-XL
Joan Leon · @nucliweb
112 followers · 232 posts · Server webperf.social
Waiting for Safari 17 to test the PostCSS plugin to use JXL in the CSS background
#jpegxl #jxl #postcss #css #ImagePerf #productperf #webperf
Joan Leon · @nucliweb
112 followers · 231 posts · Server webperf.socialPerformance Optimization Strategy in 2023
#webperf #productperf #Performance #wpo
Joan Leon · @nucliweb
112 followers · 228 posts · Server webperf.social
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
#webperf #productperf #Performance