Title: old_slug_redirect_url
Published: December 9, 2015
Last modified: February 24, 2026

---

# apply_filters( ‘old_slug_redirect_url’, string $link )

## In this article

 * [Parameters](https://developer.wordpress.org/reference/hooks/old_slug_redirect_url/?output_format=md#parameters)
 * [Source](https://developer.wordpress.org/reference/hooks/old_slug_redirect_url/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/hooks/old_slug_redirect_url/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/hooks/old_slug_redirect_url/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/hooks/old_slug_redirect_url/?output_format=md#wp--skip-link--target)

Filters the old slug redirect URL.

## 󠀁[Parameters](https://developer.wordpress.org/reference/hooks/old_slug_redirect_url/?output_format=md#parameters)󠁿

 `$link`string

The redirect URL.

## 󠀁[Source](https://developer.wordpress.org/reference/hooks/old_slug_redirect_url/?output_format=md#source)󠁿

    ```php
    $link = apply_filters( 'old_slug_redirect_url', $link );
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/query.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/query.php#L1114)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/query.php#L1114-L1114)

## 󠀁[Related](https://developer.wordpress.org/reference/hooks/old_slug_redirect_url/?output_format=md#related)󠁿

| Used by | Description | 
| [wp_old_slug_redirect()](https://developer.wordpress.org/reference/functions/wp_old_slug_redirect/)`wp-includes/query.php` |

Redirect old slugs to the correct permalink.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/hooks/old_slug_redirect_url/?output_format=md#changelog)󠁿

| Version | Description | 
| [4.4.0](https://developer.wordpress.org/reference/since/4.4.0/) | Introduced. |

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