HTML Meta标签知多少

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一、基本属性

标签常常被用来定义HTML文档的元数据或者HTTP协议的指向，这些元数据常用在SEO、HTML Pages or Apps on Mobile/Handheld Devices，该标签主要包括以下属性：

Attribute	Description
Name	Name for the property. Can be anything. Examples include, keywords, description, author, revised, generator etc.
content	Specifies the property's value.
scheme	Specifies a scheme to interpret the property's value (as declared in the content attribute).
http-equiv	Used for http response message headers. For example http-equiv can be used to refresh the page or to set a cookie. Values include content-type, expires, refresh and set-cookie.

二、基本的HTML Meta标签

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三、OpenGraph Meta标签

为了提高站外内容的传播效率，2010年9月，在F8会议上Facebook公布了一套开放图景协议(Open Graph Protocol)，任何网页只要遵守该协议，SNS就能从页面上提取最有效的信息并呈现给用户。通过Open Graph把其他社交网站建构的网络给连接起来，将创造一个更聪明、更与社交连接、更个人化也更具语意意识的网络。

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四、公司/服务 Meta标签

4.1 CLAIMID

ClaimID was a website that allowed users to create unique profiles that showed personal websites, profiles at other sites, and other biographical information.

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4.2 APPLE META TAGS

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4.3 INTERNET EXPLORER META TAGS

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4.4 TWEETMEME META TAGS

Tweetmeme跟踪Twitter上的链接，以给用户更好的体验。它使用一种常用的排序系统，以在这个微博世界里找出最热门的信息。

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4.5 BLOG CATALOG META TAGS

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4.6 RAILS META TAGS

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五、创建自定义 Meta标签

Use custom meta tags to store data that you need in javascript, instead of hard-coding that data into your javascript. I store my Google Analytics code in meta tags. Here's some examples:

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六、HTML Link 标签

6.1 HTML LINK TAGS

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6.2 APPLE LINK TAGS

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七、HTML5中的变化

The charset attribute specifies the character encoding used by the document. This is a character encoding declaration. If the attribute is present in an XML document, its value must be an ASCII case-insensitive match for the string "UTF-8" (and the document is therefore forced to use UTF-8 as its encoding).


There must not be more than one meta element with a charset attribute per document.

八、参考链接

W3C HTML5 Meta Element

Metatags in HTML 5

HTML Meta Tags

COMPLETE LIST OF HTML META TAGS

DCMI Dublin Core Metadata Initiative

Apple-specific meta tags

LinkTagMeaning

Google Chrome HTML5 Tags

Facebook Open Graph META Tags