WebCite to archive web-only sources and avoid link rot. Archive url can be added to cite templates with parameters
archiveurl = url | archivedate = date | deadurl =no
Duplicate link detector Add the script below to Special:MyPage/common.js to create a "Highlight duplicate links" in the toolbox on the left of every mainspace article. The tool finds overlinking in the main text, but ignores the lead section, infoboxes and captions, where duplicate links are generally useful and recommended in MoS.