Graphs on this site are created from our domain-database which contains approximately 12 mil. domains. If there is a NS record for a domain both A and AAAA RR are checked.
IPv6 support for NS records
Ratio of IPv4 only, dualstack and IPv6 only NS records
IPv6 support for NS records per TLD
Only TLDs with more then 10 000 records are displayed.
DNSSEC support per TLD
Only TLDs with DNSSEC penetration higher then 0.5% are displayed.