页面 SEO
图片替代文字
为何重要
Alt text describes images for screen readers and for search engines, and is shown when an image fails to load. Missing alt text is an accessibility barrier and a missed image-search opportunity.
如何修复
- Add a short, specific description to every meaningful image.
- Use an empty alt="" for purely decorative images.
- Do not stuff keywords into alt text.
使用以下工具检查
- Image Alt Text Checker – Find images with missing alt text, missing dimensions and no lazy loading.
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