Joan
León
@nucliweb
joanleon.dev
Web Performance Snippets
nucliresources
https://perf.reviews/
QuintoAndar reduced LCP by 26% and FID by 72% and saw a 46% reduction in bounce rate, and 87% increase in pages per session, and a 5% improvement in conversion.
Adobe improved LCP from 7.2 seconds to 3.4 seconds and engaged visit rate increased by 35%, bounce rates decreased by 6%, and the average time spent on page increased by 21% for mobile visitors.
Carpe improved Largest Contentful Paint by 52% and Cumulative Layout Shift by 41% and saw a 10% increase in traffic, a 5% increase in online store conversion rate, and a 15% increase in revenue.
Sunday Citizen improved their key performance metrics and were able to achieve 25% improvement in Largest Contentful Paint and 61% in Cumulative Layout Shift at the 75th percentile. This resulted in 4% decrease in bounce rate and over 6% increase in conversion.
Rakuten 24 ran an A/B test showing improved vitals brought a 53.4% incrase in revenue per visitor, 33.1% increase in conversion rate, 15.2% increase in average order value, 35.1% reduction in exit rate and more!
How Trendyol reduced INP by 50%, resulting in a 1% uplift on click-through rate
How prefetching helped Terra increase ads click-through rate by 30% and speed up Largest Contentful Paint.
Source: WPOstats and web.dev
/web-vitals/
Google Search Console
/lighthouse/
Lighthouse 100 son los padres 🤫
/webpagetest/
/DebugBear/
/DevTools/
/webperf-snippets/
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Source: The Three Types of Performance Testing
/Lighthouse CI/
/actions-lighthouseci-compare/
/Resource hints/
/Datadog/
By Joan León
⚡️ Web Performance Consultant | Speaker | Staff Frontend Engineer at @AdevintaSpain | @GoogleDevExpert in #WebPerf | @cloudinary Ambassador