This TYPO3 extension allows the Link Validator to check links inside TemplaVoilà! Plus elements. Tested with TYPO3 v10/v11 LTS and TemplaVoilà! Plus 8
Install this from TER https://extensions.typo3.org/extension/t3voila_tvplus_linkvalidator/ or clone this repository to typo3conf/ext/t3voila_tvplus_linkvalidator:
git clone https://github.com/T3Voila/tvplus_linkvalidator t3voila_tvplus_linkvalidator