前端性能优化(一):为什么性能很重要

性能关乎用户留存率

1. 核心的网站指标,是谷歌以用户为中心定义的网站指标。
2. 核心的网站指标学习案例
3. 重点关注：
   • 经济时代是怎么通过核心的网站指标门槛并获得了比43%更好的跳出率
   • How Renault improved its bounce and conversion rates by measuring and optimizing Largest Contentful Paint
   • the BBC found they lost an additional 10% of users for every additional second their site took to load

性能关乎转化率

1. 性能和网站的商业成果息息相关，下面是一些案例：

• How Rakuten 24's investment in Core Web Vitals increased revenue per visitor by 53.37% and conversion rate by 33.13%
• Vodafone: A 31% improvement in LCP increased sales by 8%
• How redBus improved their website's Interaction to Next Paint (INP) and increased sales by 7%

性能关乎用户体验

一个消费者研究显示页面延迟的压力类似于看恐怖电影，解数学题