What is this in html page? How it will support SEO? [closed]

It's difficu开发者_开发技巧lt to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 12 years ago.

<link rev="made" href="mailto:test.com">

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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.