Usurped domains are used by spammers,
squatters, malware, SEO, phishing or other fraudulent activity. Typically they are legitimate domains that expired and were hijacked.
How to usurpify a citation
The following is a decision tree for each citation. It can be followed manually, or implemented algorithmically by bot.
Does the source URL have an archive available? If yes..
Is it in a CS1|2 template (eg. {{
cite web}})? If yes..
Add |url-status=usurped, |archive-url= and |archive-date=
Is it a square-bracketed or bare URL? If yes..
Wrap the URL (with or without square brackets) in {{
usurped}}
Is no archive available? If yes..
Can the citation be verified if the URL was removed (eg. newspaper or journal content off-line)?
Remove the URL and keep the citation
Is the citation unverifiable without a URL (eg. web-only content)?