Template:Frozenlink

Usage
This template replaces broken or irretrievably outdated external links, analogous to Template:Deleted for internal links. It should be used as necessary to avoid misleading or misdirecting readers, reduce search rank penalties for s, and aid editors in replacing or restoring links (external links should never simply be erased due to rot).

It takes four arguments:
 * 1) link: URL of the dead website (mandatory)
 * 2) display text: text to show (optional)
 * 3) date: the date the template was added to the article (optional)
 * 4) hover text: text displayed on mouseover (optional, defaults to "Dead link: "

Source

 * Adapted from UESP.