Topic:
This is an obsoleted tag, you should not use this tag in your HTML documents.
Indicates the "next" document that follows current, to permit HTML documents to be chained together.
N = "URL"
The Uniform Resource Locator for the next document in the series.
<NEXTID> is legal only within the <HEAD> ... </HEAD> tags.
As a singleton tag, <NEXTID> permits no enclosed markup.
<NEXTID> is usually placed by HTML authoring tools, but can be added manually to tell a robot (or an attentive human reader) what document comes next in this series, if any.