Site name

 Site name  is the explicit or implied name of a site, as opposed to the name of individual elements or pages.

= Use Cases =


 * comment-presentation
 * Example: Bob mentioned this article on bob.com vs Bob mentioned this article on Bob's Site Name.

Why not just "Bob mentioned this article" ? No need for the extra stuff. If you need linktext to link to the permalink of the mention, use a datetime stamp, that's common practice.

= Implementation =

A site name can be either implied(derived from other elements), or explicit, identified in the markup.

Explicit

 * The OGP defines the site_name property. It can be used like this: 

Implied
There is not currently a widely adopted way of deriving a site name from other values.

Thoughts
In the absence of an explicit site name, site name could be derived from:


 * Title tag of the site's home page
 * The top-level  and use its   property.
 * The domain name of the site

= Indieweb Examples =


 * 's site https://kartikprabhu.com is named "Parallel Transport" markedup with.
 * marks up https://webmention.herokuapp.com using.