---
title: "Fields checked by the Linkvalidator"
manual: "Link Validator"
version: "13.4"
permalink: "https://docs.typo3.org/permalink/typo3/cms-linkvalidator:checked-fields@13.4"
source: "Configuration/Fields.rst"
rendered: "2026-10-09T09:31:43+00:00"
---

# Fields checked by the Linkvalidator {#checked-fields}

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The following fields where added to the list of fields that are checked by
default:pages = canonical_linksys_redirect = targetsys_file_reference = link

The following tables and fields are supported by default:

-   `pages = url, canonical_link`
-   `sys_redirect = target`
-   `sys_file_reference = link`
-   `tt_content = bodytext, header_link`

Two special fields are currently defined, but are
not checked yet due to their TCA configuration:

-   `pages = media` has TCA `type="file"`
-   `tt_content = records` has TCA `type="group"`

The following fields could theoretically be included in
custom configurations, as their type / softref is available,
but they are specifically not added in the default configuration:

-   `sys_webhook = url` (webhook should not be invoked)
-   `tt_content = subheader` (has softref `email[subst]`
    which is not a supported link type)
-   `pages = tsconfig_includes` (system configuration)
-   `sys_template = constants, include_static_file, config`
    (system configuration)
-   `tx_scheduler_task_group = groupName` (scheduler
    system configuration)

## Required TCA configuration so a field can be checked by the Linkvalidator {#checked-fields-tca}

Currently, LinkValidator will only detect links for fields if the
TCA configuration meets one of these criteria:

-   at least one [softref](https://docs.typo3.org/m/typo3/reference-tca/13.4/en-us/ColumnsConfig/Type/Input/Index.html#tca-property-softref)
-   type is set to [link](https://docs.typo3.org/m/typo3/reference-tca/13.4/en-us/ColumnsConfig/Type/Link/Index.html#columns-link)
-   type is set to [email](https://docs.typo3.org/m/typo3/reference-tca/13.4/en-us/ColumnsConfig/Type/Email/Index.html#columns-email)

For this reason, it is currently not possible to check for
`pages.media`. This will be fixed in the future.

Examples for working fields:

-   `pages.canonical_link` (`'type' => 'link'`)
-   `pages.url` (`'softref' => 'url'`)
-   `sys_file_reference.link` (`'type' => 'link'`)

Example for not working fields:

-   `pages.media` (`'type' => 'file'`)