en.wikipedia.org/wiki/Help:HTML_in_wikitext

Showing page report for: Help:HTML in wikitext - 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/Wikipedia:Noticeboards Wikipedia:Noticeboards - Wikipedia 5,055 53%
wiki/Wikipedia:Template_index Wikipedia:Template index - Wikipedia 3,592 38%