---
title: "TYPO3 Link Validator"
manual: "Link Validator"
version: "main"
permalink: "https://docs.typo3.org/permalink/typo3/cms-linkvalidator:start@main"
source: "Index.rst"
start: true
rendered: "2026-09-22T20:19:04+00:00"
---

# TYPO3 Link Validator {#start}

-   *Extension key:* linkvalidator
-   *Package name:* typo3/cms-linkvalidator
-   *Version:* release
-   *Language:* en
-   *Author:* TYPO3 contributors
-   *License:*

    This document is published under the
    [Open Content License](https://www.openhub.net/licenses/opl).

-   *Rendered:* today

---

The Link Validator checks for broken links and displays results in the
(Info>LinkValidator) backend module.

It can validate all types of links: internal, external and file links. The
Scheduler can run the validator periodically, including the option to
send status mails when broken links are detected.

---

**Table of Contents:**

-   [Introduction](https://docs.typo3.org/permalink/typo3/cms-linkvalidator:introduction-1@main)
-   [Usage](https://docs.typo3.org/permalink/typo3/cms-linkvalidator:working-with-linkvalidator@main)
-   [Installation](https://docs.typo3.org/permalink/typo3/cms-linkvalidator:installation-1@main)
-   [Configuration](https://docs.typo3.org/permalink/typo3/cms-linkvalidator:configuration-of-the-linkvalidator-extension@main)
    -   [Checked Fields](https://docs.typo3.org/permalink/typo3/cms-linkvalidator:fields-checked-by-the-linkvalidator@main)
-   [Development](https://docs.typo3.org/permalink/typo3/cms-linkvalidator:linkvalidator-information-for-developers@main)
    -   [Custom linktypes](https://docs.typo3.org/permalink/typo3/cms-linkvalidator:implementation-of-a-custom-linktype-for-the-link-validator@main)
    -   [API](https://docs.typo3.org/permalink/typo3/cms-linkvalidator:public-api-of-the-typo3-linkvalidator@main)
-   [Large sites](https://docs.typo3.org/permalink/typo3/cms-linkvalidator:hints-for-large-sites@main)
-   [Known problems](https://docs.typo3.org/permalink/typo3/cms-linkvalidator:known-problems-1@main)