Checks your contents (posts and pages) against the web for inadvertant duplicate content before postings. Detects online copies of your older posts.
As of April 2026, Plagiarism is a WordPress page plugin with 70 active installations and a 3/5 rating from 7 reviews. It has been downloaded 13K+ times in total. Requires WordPress 3.0+ and PHP false+. Available on WordPress.org since 2012. Last updated 12 years ago — may have compatibility concerns. Top alternative: Post Type Switcher.
The Plagiarism plugin keeps you from being penalized by Google (Panda) for inadvertent duplicate content.
The plugin searches online for phrases in your posts that may duplicate content already on the web (even in different context or on sites you don’t know).
After you save a post or page click the “Check for Duplicate Content” button. Plagiarism will show a list of duplicate phrases.
A link is provided for every problematic phrase, showing its related search results.
You can also use Plagiarism to check for websites scraping your content after it’s published. Just come back to your posts, clear the Plagiarism box results and check again for duplicate content.
Several search engines are supported:
* Google Search (default)
* Google Blog Search
* B…
| WordPress | 3.0+ requiredTested up to 3.7.41 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.