To help the user decide whether to traverse a link in content, make available the following information about it:
link element content,
link title,
whether the link is internal to the resource (e.g., the link is to a target in the same Web page),
whether the user has traversed the link recently, and
information about the type, size, and natural language of linked Web resources.
Normative inclusions and exclusions
User agents are expected to compute information about recently traversed links. For the other link information of this checkpoint, the user agent is only required to make available what is present in content.
The user agent is not required to compute or make available information that requires retrieval of linked Web resources.