Resource (Web Page) - Type (Structured Data | Metadata )
Table of Contents
About
The data structure of a resource such as a web page, or email, … is created by adding metadata to it.
They are used intensively by search engine in order to create rich result and may improved your Seo
search result api may also return them. (ie Google Search Custom for instance)
The markup does not change the formatting of your website, it just makes the metadata and text enclosed within the XHTML tags more meaningful to computers.
This metadata applied on multiple web page transforms the web as a graph.
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Example
On a recipe page, you could define:
- the ingredients,
- the cooking time and temperature,
- the calories,
- and so on.
Format
Structured data formats are rules that standardize the structure and content of the webpage in order to improve the meaning or semantics.
They are markup that you add to a web page
- HTML element
- <meta> tags: standard HTML tags
- link tag for relation between document and the canonical url
- PageMaps: invisible blocks of XML that add metadata to pages.
- Microformats: tags used to mark up visible page content along predefined types.
- RDFa: an alternate standard for marking up visible page content along arbitrary types.
- Microdata: a new HTML5 standard for marking up visible page content.
- Page Date: features on a page indicating its date
Google Search supports only (Ref):
See also The web almanach
Protocol / Vocabulary
- Schema.org - Google
- Open Graph (Tag|Protocol) - Ogp - Facebook
Social Media
Social media uses metadata also to style the card that are used to embed link to a website.
Example: