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}
当前位置： 首页 > 售后 > 艺源智库
【SEO优化】图片ALT标签的添加规则
时间：2018-05-25 11:12:22
文章发布：
原创作者：夫唯
来源：互联网

2012年、2013年百度和Google都做了很多算法更新，其中大的变化是，降低了外链在权重中的比重，加强了内容特别是高质量内容的重要性。

所谓内容具体包含：网页的三个标签、文字内容，链接内容，图片内容。

特别是随着“读图时代”的到来，图文并茂成为互联网用户日益增长的需求。我们作为用户，也切身可以体会到看网页更喜欢看图片，而非文字。


那么我们应该如何给网页上的图片进行SEO优化呢？

所谓对图片进行优化，核心就是优化图片的ALT标签。


图片的源代码一般是：

微信小程序、APP开发公司艺源科技logo

alt="微信小程序、APP开发公司艺源科技logo"

src="这里写图片地址" 

alt="图片的ALT标签" 


ALT也叫代替标签，写法规则如下：

第一种写法：alt="" 不好（但常见）；

第二种写法：alt="宝贝"稍好（但没有告诉用户具体内容）；

第三种写法：alt="宝贝二周岁生日吃蛋糕" 佳 （简单描述图片内容，并嵌套关键词）。


ALT写法的要点是：

包含关键词的一个简单句子，而不是几个关键词堆积。


以下这个写法要避免（可能会导致被视为Spam垃圾网站）： 

alt="小宝宝 宝贝 心肝 蛋糕 吃蛋糕 生日 宝宝生日 小宝宝生日"


一些同学提到的疑问：

1、图片可以加ALT，文字可以加title，那么文字是否有必要加title呢？

咱们加alt是增加了用户体验，告诉用户这个图片是关于什么。如果文字内容不能明确告诉用户要表达的意思，则也可以添加上title。


2、图片有时是程序调出的，没法加alt，怎么办？

这种情况则可以不用那么刻意添加。网页上其他的地方，能加alt的地方尽量加上，特别是网站的logo位置。


3、网站首页有很多产品图片，需要每个产品都添加ALT吗？

如果图片特别多，可以选择其中一部分添加就可以，各个添加ALT的写法要各不一样，不要全部只包含某一个关键词，可以多个关键词分配出现。


4、有没一些比较明确的案例可以学习？

请查看www.yysweb.com  的源代码，然后在源代码文件里搜索alt，可以看到这个页面上的一些小图片做的ALT标签。

blob.png

小程序开发
标签： SEO优化 图片ALT标签的添加规则 图片ALT标签
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