Admin Title Check adds additional title checking functionality to the title field in the admin’s classic editor add and edit post pages. Typing 4 or more characters into the title field will trigger the title check. Any published (including privately) posts, pages and custom post type titles with exact or similar titles will be shown.
Prevent Duplicate Titles
Showing whether the title has been used by other posts and pages prevents duplicate titles (therefore may include duplicate slugs) from being added.
Find Similar Titles
Use existing posts’ titles to help craft a new one.
Simple
The title check is simple to use: just start typing in a title into the title field while adding or editing a post. Exact and similar titles will be shown.