Title: Unique Slug Checker
Author: Mehrad
Published: <strong>May 4, 2025</strong>
Last modified: June 29, 2026

---

Search plugins

![](https://ps.w.org/unique-slug-checker/assets/icon-256x256.png?rev=3287129)

# Unique Slug Checker

 By [Mehrad](https://profiles.wordpress.org/moma2work/)

[Download](https://downloads.wordpress.org/plugin/unique-slug-checker.1.4.0.zip)

 * [Details](https://en-ca.wordpress.org/plugins/unique-slug-checker/#description)
 * [Reviews](https://en-ca.wordpress.org/plugins/unique-slug-checker/#reviews)
 *  [Installation](https://en-ca.wordpress.org/plugins/unique-slug-checker/#installation)
 * [Development](https://en-ca.wordpress.org/plugins/unique-slug-checker/#developers)

 [Support](https://wordpress.org/support/plugin/unique-slug-checker/)

## Description

**Unique Slug Checker** helps you maintain clean, conflict-free URLs by detecting
duplicate slugs across your entire WordPress site in real-time.

🚀 **Core Features:**

✔️ **Real-time checking** in both Classic and Gutenberg editors
 ✔️ **Full SEO plugin
support** (Yoast SEO, Rank Math, All in One SEO) ✔️ **Cross-post type detection**–
finds duplicates in any content type ✔️ **Visual status indicators** with clear 
warnings ✔️ **Post list column** showing slug availability ✔️ **Multilingual ready**
with translation support

🔧 **New in 1.4.0**
 – **WordPress 7.0 compatibility** – fully tested and optimized–**
Performance improvements** – 30-40% faster with caching – **Fixed deprecated functions**–
removed `get_page_by_path` – **PHP 8.2/8.3 compatibility** – improved code quality–**
Better security** – enhanced nonce and data validation – **Full CPT support** – 
works with all custom post types – **Memory leak fix** – proper cleanup in Gutenberg

Perfect for:
 – Large content sites – Multilingual websites – Editorial teams – 
SEO-conscious publishers

### Credits

Developed by [Mohsen Mahdavi](https://en-ca.wordpress.org/plugins/unique-slug-checker/moma2work@gmail.com?output_format=md)

### License

This plugin is licensed under the **GPLv2 or later**.

### Author

**Mohsen Mahdavi** – moma2work@gmail.com

## Installation

 1. Upload the plugin files to `/wp-content/plugins/unique-slug-checker`
     OR install
    directly via WordPress admin (Plugins > Add New)
 2. Activate the plugin
 3. Start editing posts – duplicate slugs will be detected automatically

## FAQ

### Does this work with custom post types?

Yes. It checks all post types when detecting duplicate slugs, including custom post
types.

### Does it work with blocks/Gutenberg?

Yes, fully supports the block editor and shows notices in real time.

### Does it support modals and dynamically loaded fields?

Yes. The plugin uses mutation observers and timers to detect and attach logic even
inside SEO plugin modals like Rank Math.

### Does it affect site performance?

No. The plugin uses optimized queries with caching to minimize database load.

### Can I suggest a feature?

Of course! Open an issue on GitHub: https://github.com/m2mahdavi/unique-slug-checker

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Unique Slug Checker” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ Mehrad ](https://profiles.wordpress.org/moma2work/)

“Unique Slug Checker” has been translated into 2 locales. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/unique-slug-checker/contributors)
for their contributions.

[Translate “Unique Slug Checker” into your language.](https://translate.wordpress.org/projects/wp-plugins/unique-slug-checker)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/unique-slug-checker/),
check out the [SVN repository](https://plugins.svn.wordpress.org/unique-slug-checker/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/unique-slug-checker/)
by [RSS](https://plugins.trac.wordpress.org/log/unique-slug-checker/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.4.0

 * **Compatibility:** WordPress 7.0 support
 * **Compatibility:** PHP 8.2 and 8.3 support
 * **Fix:** Removed deprecated `get_page_by_path` function
 * **Performance:** Added caching for faster slug checking (30-40% faster)
 * **Performance:** Optimized database queries
 * **Security:** Improved nonce verification and data sanitization
 * **Feature:** Full support for all Custom Post Types
 * **Fix:** Memory leak prevention in Gutenberg editor
 * **Code quality:** Better error handling and type hints

#### 1.3.0

 * Fix: Prevent duplicate notices and DOM pollution
 * Fix: Avoid re-attaching handlers to already-processed fields
 * Enhancement: Rank Math modal compatibility (dynamic fields)
 * Enhancement: Clean and concise English comments in JS
 * Improved: More stable and accurate field detection

#### 1.2.0

 * Feature: Full support for Gutenberg (Block Editor)
 * Feature: Show slug status icon in post list
 * Fix: Improved nonce handling and data validation
 * Enhancement: Better AJAX response and UI feedback
 * Improved: SEO plugin support (AIOSEO, Yoast, Rank Math)

#### 1.1.0

 * Added: Slug check status in post list view
 * Added: Alternative slug suggestions
 * Improved: SEO plugin support (Yoast, Rank Math)
 * Improved: Full compatibility with Gutenberg editor

#### 1.0.1

 * Added support for WordPress 6.8.
 * Added multilingual support (8 languages).
 * Improved validation and notices.
 * Minor optimizations.

#### 1.0.0

 * Initial release.
 * Real-time slug validation.
 * Integration with Yoast and Rank Math fields.
 * Base translation and localization setup.

## Meta

 *  Version **1.4.0**
 *  Last updated: **3 months ago**
 *  Active installations: **60+**
 *  WordPress Version: ** 5.6 or higher **
 *  Tested up to: **7.0.7**
 *  PHP Version: ** 7.4 or higher **
 *  Language:
 * [English (US)](https://wordpress.org/plugins/unique-slug-checker/), [Spanish (Chile)](https://cl.wordpress.org/plugins/unique-slug-checker/),
   and [Spanish (Spain)](https://es.wordpress.org/plugins/unique-slug-checker/).
 *  [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/unique-slug-checker)
 * Tags:
 * [all in one seo](https://en-ca.wordpress.org/plugins/tags/all-in-one-seo/)[gutenberg](https://en-ca.wordpress.org/plugins/tags/gutenberg/)
   [rank math](https://en-ca.wordpress.org/plugins/tags/rank-math/)[Yoast](https://en-ca.wordpress.org/plugins/tags/yoast/)
 *  [Advanced View](https://en-ca.wordpress.org/plugins/unique-slug-checker/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/unique-slug-checker/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/unique-slug-checker/reviews/)

## Contributors

 *   [ Mehrad ](https://profiles.wordpress.org/moma2work/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/unique-slug-checker/)

## Donate

Would you like to support the advancement of this plugin?

 [ Donate to this plugin ](https://github.com/sponsors/m2mahdavi)