AnyLink is a Wordpress plugin which allow you to customise you external link like an internal one.

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Anylink 是一款链接转换插件，它可以把长链接转换成短链接，也可以将外部链接转换成内部链接，同时还可以隐藏真实的链接地址。它不会修改wordpress自带的数据库，也不会修改文章中的任何内容，无论什么时候都不会影响到你数据的完整性。是同类软件中安全性较高、方便灵活的轻量级软件。
Anylink allows you to covert the external links in your WordPress to internal links. Of course, it’s automatically. It’s advantage 
is that Anylink Plugin doesn’t destroy your data in WordPress, which means once you removed it, you needn’t do anything to your 
posts.
Also, you can customise the style of the link, such as its length, component, etc. You can customise the redirect type(http status) such as 
301, 307 as well.
Mainly feature:
<ul>
<li>covert external links to internal links, e.g. http://wordpress.org -> http://yourdomain/goto/a1b2</li>
<li>customise the redirect category, e.g. you can change “goto” in the link above to any word you like</li>
<li>allow you change the components of the slug, by default it’s 4 letters and numbers. e.g. a1b2</li>
<li>you can customise the redirect http status code, such as 301, 307</li>
</ul>

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