The .IT registry requires that name servers are properly preconfigured before delegating the domain. This rule applies to both domain registration and modification of name servers.
The registry provides a web-based tool to check the DNS setup for a domain. The test shows whether there are setup errors for one or more name servers:
https://www.nic.it/en/manage-your-it/dns-check
Once you click on the Add Nameserver button, you can enter the name servers for the test, as shown in the picture below:
DNS configurations checks
The DNS configurations checks are activated in the following way:
If the domain name is in inactive/dnsHold status:
- Immediately after the Add Domain request.
- Immediately after every subsequent Update Domain request (ModifyDomain) to change the DNS configuration.
- Every 30 minutes for the first 30 days following the registration of the domain name.
If the domain name is in pendingUpdate status:
- Immediately after every Update Domain (ModifyDomain) request to change the DNS configuration.
- Every 30 minutes until the expiration of the pendingUpdate period (5 days).
Technical name server requirements
The procedure for the control of name servers analyses the hosts that must be associated with domain names that are either in inactive/dnsHold status or in pendingUpdate and executes the appropriate query to verify that it is actually operative. In particular:
- There must be at least 2 (two) authoritative name servers for the domain name, and they must
correspond exactly to those found in the registration request of the domain name or in the
hosts change request. - The IPv4 and, if indicated, the IPv6 address of the hosts subordinate to the domain name,
must correspond to those actually associated with them in the DNS. - The IPv4 and, if indicated, the IPv6 address of the hosts subordinate to the domain name, must answer in an authoritative way.
- The domain name cannot be associated with a CNAME record.
- The name of the name server specified in the SOA record for the domain name cannot be a CNAME.
- The names of the authoritative name servers for the domain name cannot be CNAMEs.
- If there is an MX registration it cannot be associated with a CNAME.
- The procedure returns an error if, during the checking procedure, at least one name server returns the following responses: Not responding, Not reachable, Not running, Non-existent domain, Host not found, Server failure, Query failed.
- All hosts in the registration must be authoritative for the domain name registered.