The Titles Report
The titles report lists the titles of all the pages of the website, along with any issues found (such as two titles on a page).

Source URL
The page on which the title is found.
Title
The title of the page. Every page should have a unique title. You can try ordering the Title column by clicking on the Title header, to look for duplicates. Or use the "Filter text..." filter to look for keywords.
Issue
Any issues found, such as having two title tags.