en.wikipedia.org/wiki/Help:User_contributions

Showing page report for: Help:User contributions - Wikipedia
To see your duplicate content highlighted on the page, click on a row in the table below: 
Page Duplicate Content Search title or URL  
  URL Title Match Words ▾ Match Percentage
wiki/Help:Sound_file_markup Help:Sound file markup - Wikipedia 973 26%
wiki/Help:Files Help:Files - Wikipedia 960 25%
wiki/Wikipedia:Dispute_resolution Wikipedia:Dispute resolution - Wikipedia 223 6%