Prevents spammers from duplicating legit comments but with their commenter name and URL
As of April 2026, Ozh' No Duplicate Comments is a WordPress ozh plugin with 10 active installations and a 0/5 rating0. It has been downloaded 2.4K+ times in total. Requires WordPress 1.5+ and PHP false+. Available on WordPress.org since 2010. Last updated 15 years ago — may have compatibility concerns. Top alternative: Ozh' Admin Drop Down Menu.
A new trend in spam is to duplicate legit comments from your readers to hopefully pass spam filters. Spammers post content that was previously approved on your site, but with their own name and URL. This plugin prevents this.
| WordPress | 1.5+ requiredTested up to 9.9 |
| PHP | false+ required |
The changelog can be found:
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