uk-nationwide.com publishes IPv6 but doesn't answer on it.
Has both IPv4 (A) and IPv6 (AAAA) addresses.
F
IPv6 readiness
Publishes IPv6 but doesn't answer on it — worse than having none.
Website over IPv6 uk-nationwide.com has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4.
✗ 2a07:7800:1::203 no answer
broken
www over IPv6 www.uk-nationwide.com has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4.
✗ 2a07:7800:1::203 no answer
broken
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record.
mx.stackmail.com ✗
no
Nameservers have IPv6 No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.
Fix or remove the AAAA record for uk-nationwide.com Something published an IPv6 address but nothing answers on it, so IPv6 visitors wait for a timeout first. Either make the server listen on IPv6 (and allow ports 443/80 through its firewall), or delete the AAAA record until it does.
Fix or remove the AAAA record for www.uk-nationwide.com Something published an IPv6 address but nothing answers on it, so IPv6 visitors wait for a timeout first. Either make the server listen on IPv6 (and allow ports 443/80 through its firewall), or delete the AAAA record until it does.
Mail servers without IPv6 mx.stackmail.com has no AAAA record, so mail from IPv6-only servers can't reach it directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.
Nameservers without IPv6 ns1.serverbyt.net, ns3.serverbyt.net, ns2.serverbyt.net, ns4.serverbyt.net all have no AAAA record, so a resolver that only speaks IPv6 can't look your domain up. Most DNS providers offer IPv6 nameservers; ask yours, or move DNS to one that does.