What does the tag value used for in this element
<a href="url-example" rel="tag">
? I read this: "The tag value of the rel attribute gives a tag (identified by the given address) >that applies to the current document." but I can't understand what the benefit of making a tag for the page?
the rel="tag" attribute is basically a keyword for SEO
like <a href="secure/data/photos" rel="nofollow"> photos</a> prevents google SEO bot from crawling the folder.