The link you followed will bring you to this page:

https://www.fastweb.it/fastweb-plus/digital-magazine/audio-deepfake-si-possono-riconoscere/#:~:text=Audio%20deepfake%3A%20di%20cosa%20si%20tratta&text=I%20deepfake%2C%20in%20pratica%2C%20sono,che%20non%20ha%20mai%20detto.