IPv6 reachability
ns.ipv6
IPv6-only networks exist, and resolvers on them prefer nameservers they can reach directly.
A longer write-up of this check has not been published yet. The report itself shows the raw evidence behind every result, which is usually the fastest way to see what was measured.
Run this check on a domain
IPv6 reachability is one of 49 checks in every report, alongside delegation, mail authentication, TLS and registration.
Also in Nameservers
- Every nameserver is authoritative
- At least two nameservers
- Nameservers are independent of each other
- Nameserver hostnames are valid
- Nameservers are not open resolvers
- Nameservers agree on the SOA serial
- Nameservers agree on the NS set
- Nameservers respond over TCP
- Nameservers respond over UDP
- Zone transfers are not open to the world