速度
图片尺寸
为何重要
Images without width and height attributes make the layout jump while the page loads, which hurts Cumulative Layout Shift.
如何修复
- Add width and height attributes (or CSS aspect-ratio) to every image.
使用以下工具检查
- Core Web Vitals Checker – Check real-user LCP, INP and CLS from the Chrome UX Report for a page and its whole site.
评分：通过的检查获得全部权重，警告获得一半，错误则不得分。 SEO 评分如何运作