Gandi offers three validation methods: * DNS: you need to add a specific record to your DNS zone * File: you need to add a specific file to the root of a HTTP

Gandi offers three validation methods: * DNS: you need to add a specific record to your DNS zone * File: you need to add a specific file to the root of a HTTP server listening on the domain name * Email: they send an email to admin@ on the domain All three are pretty much ways to check that you are the person in control of the associated DNS.