Unique Title Checker

This plugin checks the title of any post, page, or custom post type to ensure it is unique, helping you avoid duplicate titles that can hurt SEO. It's designed for site owners and editors who want to maintain clean, search-friendly content.

• Real-time title check: As soon as you leave the title input field, the plugin runs an AJAX check to see if the title already exists. You get immediate feedback without blocking your workflow.
• Works with all post types: Supports posts, pages, and any custom post type. By default, it checks for duplicates only within the same post type, but you can customize this.
• Customizable via filters: Use the unique_title_checker_arguments filter to modify the WP_Query used for duplicate detection. For example, you can search across all post types or include specific post statuses.
• No save blocking: The plugin never prevents you from saving a post. It only shows warnings, so you can still publish duplicate titles if you have a valid reason.
• Compatible with both editors: Works with the Classic Editor and the Block Editor (Gutenberg), including the iframed version introduced in newer versions.