Hi there! Tawny from the Help Team here. Sergio's answer is helpful if you're dealing with duplicate content issues, and the links in that answer might help you figure out how to resolve those issues!
Pages are considered to have duplicate titles only if their titles are exact matches. There is no notion of overlapping or partial matches for this purpose. Like duplicate content, canonical versions should be considered, but not pages that refer to the canonical version. Furthermore, two pages with blank titles should not be considered duplicates of one another.
You can verify the page title by viewing the source code of the page itself. I hope this helps! Drop us a line at help@moz.com if you have any other questions or if there's anything that needs clarifying!
