.. include:: /Includes.rst.txt .. index:: Core link handler .. _core-link-handler: ================= Core link handler ================= The Core link handler, implementing the :php:`\TYPO3\CMS\Core\LinkHandling\LinkHandlingInterface` described here matches between different internal representations of a link. It is not to be mixed up with the :ref:`backend link handler `, commonly also just called link handler. The latter implements the :php:`\TYPO3\CMS\Backend\LinkHandler\LinkHandlerInterface` and renders a tab in the link browser. You can find the built-in Core link handlers in :file:`EXT:core/Classes/LinkHandling`. In the tutorial section we provide an example on how to implement a :ref:`custom Core link handler `.