A rel="tag" attribute value specifies that the linked page is an author-designated place for tags, keywords, or subjects for the current page.
The specified link only contains current page tags.
A rel="tag" on an <a> tag.
This link tags the current page with the keyword Impressionism.
For clarifications visit the Wikipedia page on
<a rel="tag"
href="https://en.wikipedia.org/wiki/Impressionism"
target="_blank">Impressionism</a>
The rel attribute defines the relationship between the current page and the linked page or resource.
The rel="tag" value specifies that the linked page contains the tag, keyword, or subject of the current page.
This value only specifies the current page's tag and not for the entire site.
<tagname rel="tag" />
These elements accept the tag value on the rel attribute.
| Elements | Description | |
|---|---|---|
| <a> | Specifies an anchor link -- see example above | |
| <area> | Creates clickable areas inside an image map. |
Here is when rel support started for each browser:
 Chrome
|
6.0 | Sep 2010 |
 Firefox
|
4.0 | Mar 2011 |
 IE/Edge
|
12.0 | Jul 2015 |
 Opera
|
11.1 | Mar 2011 |
 Safari
|
5.0 | Jun 2010 |
