This is used inline beside (to the right) of a broken external hyperlink to signify to editors that the hyperlink in question is dead.
It is suggested to update the link if possible, perhaps using archive.org.
All http:// hyperlinks. All of these need to be checked to see if they can be rewritten to https://
All ftp:// hyperlinks. All of these need to be check to see if an sftp:// or https:// version is available.
All irc:// hyperlinks. There shouldn't be any. Links to libera or OFTC should be ircs://
raw wiki markup: