Zonechecks (DNS zone validation)

What is a zonecheck?

A zonecheck is a test that some registries perform to see if the name servers you want to use with your domain comply with their usage requirements. If the name servers you want to use don't pass this test, the registry won't accept this operation (which will result in an error in your interface).

If this happens, the best thing to do is to use a site offering an online zonecheck (such as https://zonemaster.net/fr/run-test), specifying your domain name and the new nameservers you want to use. This will generate a report which you can be used by the provider of the new DNS to solve the problem.