问题
Google don't like it when you use same content across multiple sites, according to some.
Is there any way to annotate/tag a block of content with the "source".
Something like an attribute:
<div original-content="http://some.url">
The purpose is solely to let Google that we have duplicated the content (I.e. not as part of a search ranking strategy). Search engines could then use this information somehow.
回答1:
This might help you out:
http://searchengineland.com/google-creates-metatags-to-help-id-original-news-sources-56115
Looks like the meta tag you want is
meta name=”original-source” content=”[url]”
However it looks like that is only for an entire page.
回答2:
Use the canonical tag, which tells the web engine crawler that the text is duplicated from the original website.
Example:
Place this in the header of your HTML page (in the duplicated content page)
<link rel="canonical" href="http://www.original-website.com" />
Reference: Canonical URL Tag - The Most Important Advancement in SEO Practices Since Sitemaps
回答3:
No, HTML has no such element or attribute.
If you quote the content (in a q or blockuote element), you could use the cite attribute. But you must not use these elements for anything other than quotes.
If the whole document is duplicated (or is a subset), you could use the canonical link type. But you must not use this if only part of the document is duplicated while the other parts are different.
来源：https://stackoverflow.com/questions/26740200/html-tag-to-annotate-the-origin-of-a-section