Last week I gave a talk at the #PerfNow conference titled “Performance Mistakes”. I started off explaining a bit about Etsy’s blameless culture, and how it’s ok to make mistakes. Then I shared 17 common #webperf mistakes using HTTP Archive data, with examples.
Slides are here - https://www.slideshare.net/slideshow/performance-now-24-performance-mistakes-final-pdf/273431101
A few attendees told me they found some of these mistakes on their websites while we were still at the conference! So now they can be considered performance opportunities!
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