---
title: "Introduction"
manual: "Extend Redirect"
version: "1.2"
permalink: "https://docs.typo3.org/permalink/nivek1110/extendredirect:introduction@1.2"
source: "Introduction/Index.rst"
rendered: "2026-10-30T14:28:20+00:00"
---

# Introduction {#introduction}

Redirects normally sit in the database until someone notices a 404 report. Extend Redirect
catches broken ones automatically - on save, on page delete/hide and in bulk via the Scheduler.

## Features {#features}

-   **Health check** \- every redirect target is verified, either by following it through a
    frontend sub-request (`request` mode) or purely against the `pages`/`sys_redirect` tables
    (`database` mode). Redirects whose target no longer resolves are disabled.
-   **Automatic re-enabling ("healing")** \- a redirect the extension disabled itself is enabled again by
    the next check that finds its target working; redirects disabled by hand are never touched, see
    [Lifecycle of a redirect](https://docs.typo3.org/permalink/nivek1110/extendredirect:usage-lifecycle@1.2).
-   **Canonical targets** \- page targets are rewritten to `t3://page?uid=...`; chains of up
    to 10 redirects are flattened to the final page. This only tidies up working redirects.
-   **Re-check on edit** \- changing a target re-enables and re-checks the redirect.
-   **Page delete/hide protection** \- redirects pointing to a deleted or hidden page are disabled
    with a logged reason.
-   **Broken-redirect filter** in the Redirects module.
-   **Last checked** column and filter in the Redirects module.
-   **Disable log** \- reason, source, target and timestamp of every automatic disabling.
-   **CSV import and export** \- semicolon-separated, with validation of hosts and duplicate source
    paths; an export can be edited and imported again.
-   **Email notification** (optional) - a mail when a redirect is disabled, as one summary mail per
    run or one mail per redirect; off by default, see [Email notification](https://docs.typo3.org/permalink/nivek1110/extendredirect:configuration-notification@1.2).
-   **Webhook and PSR-14 event** \- post disabled redirects to a chat or your own endpoint, or react to
    `RedirectDisabledEvent` in your own code.
-   **Commands** \- `extendredirect:checkredirects` and `extendredirect:cleanuplog`, both
    schedulable.