by hasan movahed 5 (4 reviews)

Duplicate Title Validator

Name: Duplicate Title Validator
Rating: 5.0 (4 reviews)
Author: hasan movahed

Prevents publishing posts with duplicate titles across all post types and taxonomies. Works with both Gutenberg and Classic Editor.

Duplicate Title Validator ranks #10,421 among WordPress.org plugins with 300+ active installations, is #126 of 833 in the Language Tools category, a 5/5 rating from 4 reviews, and was last updated Aug 30, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1

v1.9 Current Version v1.9

Updated 2 months ago Last Update on 30 Aug, 2026

Refreshed 1 week ago Last Refreshed on

#126 of 833 in Language Tools Top 25% by installs Downloads -6.7% this week

View on WordPress.org

Rank

#10,421

— No change

Active Installs

300+

-15.3%

KW Avg Position

31.5

0.2 worse

Downloads

12.5K

+1 today

Support Resolved

— No change

Rating

100%

Review 5 out of 5

5 (4 reviews)

Next Milestone 400

Total Progress 59%

300+ 400+

600

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

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Rank Changes

Current #10,421

Change

Best #

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

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Reviews & Ratings

5.0

4 reviews

Overall 100%

4 (100%)

0 (0%)

Security History

Source: WPVulnerability

1 known vulnerability on record · 0 in the last 24 months · checked 3 months ago

Oct 18, 2024

Duplicate Title Validator [duplicate-title-validate] < 1.4

CVE-2024-49623 · Fixed in v1.4

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Plugin Details

Version: 1.9
Last Updated: Aug 30, 2026
Requires WP: 6.0+
Tested Up To: 7.1
PHP Version: 7.4 or higher
Author: hasan movahed

Support & Rating

Rating: ★ ★ ★ ★ ★ 5
Reviews: 4
Support Threads: 0
Resolved: 0%

Keywords

duplicate duplicate checker localization taxonomy title

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TL;DR

AI summary of the plugin's readme

This plugin is for WordPress site owners and editors who publish content across multiple post types and want consistent, non-duplicate titles. It prevents publishing posts with duplicate titles by checking across post types and taxonomies in both Gutenberg and Classic Editor.

Comprehensive duplicate title detection
Post type selection for checking
Gutenberg publish button lock
Classic Editor auto-draft protection
Forbidden words filter
Admin email notifications
Duplicate title report page
Dashboard widget with cosine similarity

Frequently Asked Questions

Common questions about Duplicate Title Validator

Yes, it checks for duplicate titles across all registered post types and taxonomies, including custom ones. You can also limit checking to specific post types from the Settings page.

The Publish button is locked via the official lockPostSaving API and a warning panel appears in the pre-publish checklist listing all conflicting titles. The lock is released as soon as the title is changed to a unique one.

The post is saved as a draft instead of being published, and an admin notice is displayed explaining the duplication source.

Yes. Go to Duplicate Title Validator > Settings and enable "Allow Duplicate Titles." In Gutenberg this shows a dismissible warning instead of blocking publishing.

You can define a list of words or phrases that must not appear in post titles. In Block mode, publishing is prevented entirely. In Warn mode, a notice is shown but the post can still be published.

Enter one or more admin email addresses in the Settings page. Whenever a post with a duplicate title transitions to "published", the configured admins receive an email alert. A 5-minute throttle per post prevents duplicate notifications.

No. Comparison uses LOWER() in the database query, so "Hello", "hello", and "HELLO" are all treated as the same title.

Absolutely. The plugin is translation-ready with a .pot file in the languages/ folder. Create .po and .mo files using Poedit and place them in the languages/ directory.

The plugin is optimised for performance. Dashboard widget results are cached for one hour. On very large sites, the similarity scan limit can be reduced in the settings. Duplicate checking queries are lightweight and indexed.

Updates can be done directly via the WordPress dashboard. Always back up your site before updating.