https://www.sidn.nl/nieuws-en-blogs/sidn-fungeert-als-doorgeefluik-bij-verhuizing-dnssec-beveiligde-domeinen https://www.sidn.nl/en/news-and-blogs/sidn-acts-as-intermediary-in-the-transfer-of-dnssec-enabled-domains https://www.sidn.nl/nieuws-en-blogs/verhuizen-met-dnssec-ietf-methode-heeft-de-voorkeur https://www.sidn.nl/en/news-and-blogs/transfer-of-dnssec-enabled-domains-ietf-method-is-preferred