wordpress 防 Spam 的终极办法：Comments Link Redirect

Posted on 十二月 6th, 2010 by Jerry Jee

国内垃圾留言横行，作为国内最大的搜索引擎百度对此负有不可推卸的责任，由于百度不支持 rel="nofollow" 属性，造成了 Spammer 恣意妄为，肆意到处留言，根据 Akismet 这个防垃圾留言插件的统计，2008 年12月一个月就收到 4000 多条垃圾留言。并且如果如果这些外链很多都是链接到垃圾站，会让导致博客在搜索引擎（主要是百度，Google nofollow 到垃圾网站也是没事的）中的降权，直接导致排名下降。

但是百度死不悔改，并无打算遵守这个事实标准，修复这个漏洞。当你看到自己博客的留言区一大堆链接是起重机，减肥这类的广告是什么样的看法，是的这些都是我们不愿意看到，我们只想拥有一个干净的博客环境，所以我开发了一个 WordPress 插件：Comments Link Redirect，勇敢对抗 Spammer 和百度，彻底解决 WordPress 中这个问题，使得 Spammer 即使成功留言了，也不会被搜索引擎索引。

Comments Link Redirect 这个插件的主要功能主要参考 Shawn 的防止SPAM的另类方法制作，这里首先感谢下 Shawn 的 idea。但是 Shawn 需要修改主题比较多的地方，还需要添加 JS 代码，比较麻烦，我修改了下做成 WordPress 插件，只需要上传激活，然后在 robots.txt 增加一行代码即可。

Comments Link Redirect 这个插件主要功能是把留言者的链接和留言中链接的 URL 转化为一个跳转链接，如：
http://www.jerryji.cn/?r=http://www.sina.com.cn

然后手工在 robots.txt 中添加一行以下代码即可：

Disallow: /?r=*

这样所有留言区的链接既不会被搜索引擎（包括百度，如果百度真如他所说它遵守 robots.txt 协议的话）索引，更不会给予权重。

下载：Comments Link Redirect。

该插件并不会减少你博客的垃圾留言，但是它能够让这些垃圾留言不能被索引，到你博客上获取权重，这样能够真正保护你的博客。

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18 Responses to “wordpress 防 Spam 的终极办法：Comments Link Redirect”

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Danny Seidenbecker • 十二月 16th, 2010 at 20:34

Have you had problems with spammers? I also use Blog Engine and I have some good anti-spam techniques; please Email me if you are interested in an exchange of ideas.

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