This is a global bot which has an approval on Meta rather than a local one here on enwikipedia at WP:BRFA. You can see it here. You see its work here.

This bot does several tasks in English Wikipedia:

• Fixing broken section links
• Removing Link FA and Link GA templates
• Deprecating "Cite pmid" template and similar ones
• Fixing headers per WP:MOSHEAD
• Changing bare urls to Official template
• Fixing ref names
• Changing proxy links to correct ones

ak:User:Dexbot Owner: Ladsgroup