public function checkRule(TypoScriptFrontendController $frontendController, string $uri, array &$explanation, bool &$skipProcessing)
    {
        $ignoreTypes = [
            PageRepository::DOKTYPE_LINK,
            PageRepository::DOKTYPE_SYSFOLDER,
            PageRepository::DOKTYPE_RECYCLER,
        ];
        $currentType = (int)$frontendController->page['doktype'];
        if (\in_array($currentType, $ignoreTypes, true)) {
            $explanation[__CLASS__] = 'The Page doktype ' . $currentType . ' is one of the following not allowed numbers: ' . \implode(
                ', ',
                $ignoreTypes
            );
            $skipProcessing = true;
        }
    }