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Closed 12 years ago.
<link rev="made" href="mailto:test.com">
It is a way to add semantic information to a page. In this case the email address of the maker.
The value made is not in the HTML spec as a link type, so this appears to really be informational only.
The rev attribute is supposed to be a link back to a parent page (or previous page), it is short for "reverse link".
Read about the rev attribute here and here.
In terms of SEO, I don't believe this example will make a difference.
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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