在 html 5 中， rel="author" 用于链接到有关页面作者的信息。这可以是 mailto: 地址，但并非必须如此。它可以简单地链接到联系表格或“关于作者”页面（出于明显的原因，我个人不想提供电子邮件）。
到目前为止，我一直在使用 元 author 属性有效地做同样的事情 - 尽管新的 html 5 规范的优点是您不仅可以提供名称，还可以提供一个链接，其中提供了有关您的更多信息。
根据 Stack Overflow 上的另一个答案，似乎Google、Yahoo 和 MSN 不会为 rel="author"。
两者都提供有意义吗？或者说现在担心这个是没有意义的？
In html 5, rel="author" is used to link to information about the author of the page. This can be a mailto: address, though it doesn't have to be. It could simply link to a contact form or "about the author" page (I personally wouldn't want to provide email for obvious reason).
Until now, I've been using the meta author attribute to do effectively the same thing—although the advantage of the new html 5 specification is that you can provide more than just a name, but also a link where further information about you is provided.
It seems, based on another answer on Stack Overflow, that Google, Yahoo, and MSN do not index the <meta> author tag [source]. It suspect they don't currently index rel="author" either.
Would it make sense to provide both? Or is it pointless to worry about this at present?
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搜索引擎之间的战争背后是一种“专有元”，那么我将两者兼而有之。
搜索引擎不应该责怪您同时使用两者，除非您不尝试进行一些垃圾邮件索引。
根据内容的目的，不同的上下文中使用特定的元。
Google Scholar 元数据
让您使用：
还有< a href="http://dublincore.org/" rel="noreferrer">都柏林核心元数据计划，它提供了一套完整的元数据用于创作等。
不是元数据，但提供个人数据仍然很有趣信息，hcard 微格式，它使用简单且语义的 html 以可解析的格式提供 vcard由其他引擎。
哈卡示例：
Behind the war between search engines, are kind of "proprietaries metas", then I'll go for both.
Search engine should not blame you to use both until you're not trying to do some spam indexing.
Depending on what is the purpose of your content, there are specific meta used in different contexts.
Google Scholar Metadata
Let you use:
There is also Dublin Core Meta Data Initiative, which provides a complete set of metadata for authoring, etc.
Not a medata but still interesting to provide personnal informations, the hcard microformat, it uses plain and semantic html to provide vcard, in a format which can be parsed by other engine.
Example of hcard: