Groupe Renault found a strong correlation between Largest Contentful Paint and both their bounce rate and conversion rate, with a 1 second improvement leading to up to a 14 percentage point decrease in bounce rate, and 13% increase in conversions. Permalink Share on Twitter

SpeedSense worked with an e-commerce company to improve performance and saw a 7.6% increase in sitewide conversion, translating to roughly a $6 million lift in annual revenue. Mobile transactions increased by nearly 30% and sales per session increased by 16%. Permalink Share on Twitter

Ingram Micro focused on reducing Total Blocking Time and saw a 35% increase in organic traffic by improving their homepage TBT by 40%. Permalink Share on Twitter

Swappie reduced load time by 23%, LCP by 55%, CLS by 91% and FID by 90% and saw a 42% increase in mobile revenue and a 10 percentage point increase in relative mobile conversion rate. Permalink Share on Twitter

NDTV, one of India's leading news stations and websites, improved LCP by 55% and saw a 50% reduction in bounce rate. Permalink Share on Twitter

iCook improved CLS by 15% and saw a 10% increase in ad revenue as a result. Permalink Share on Twitter

Tokopedia improved LCP by 55% and saw a 23% increase in average session duration. Permalink Share on Twitter

Vodafone improved their LCP by 31%, resulting in an 8% increase in sales, a 15% increase in their lead to visit rate, and an 11% increase in their cart to visit rate. Permalink Share on Twitter

Yahoo! Japan News reduced CLS by .2, decreasing the number of URLS with poor performance in search console by 98%. As a result, they saw a 15.1% increase in page views per session, 13.3% longer session durations and a 1.72 percentage point decrease in bounce rate. Permalink Share on Twitter

Yelp reduced First Contentful Paint (75th percentile) by 45% and Yelp Page Complete (75th percentile) by 25% and saw a 15% improvement in their conversion rate. Permalink Share on Twitter