Having duplicate titles on your site is not wise, especially if you don’t want to lose any search engine ranking. Unfortunately, it is not always easy to remember previous titles you have used. These 3 duplicate post title checkers for WordPress can help:
Similar Post-Title Checker: this plugin helps you avoid using duplicate post titles. As you type, you will be able to see similar post titles underneath.
Unique Title Checker: this plugin checks the title of each new post against others you have published already to help you keep titles unique.
Duplicate Title Checker: checks the title you are planning to use for a new post and lets you know if it is not unique.
Have you found other WordPress plugins to find posts with duplicate titles? Please share them here.