Nameservers have IPv6 No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.
dns10.ovh.ca ✗ns10.ovh.ca ✗
no
HTTPS over IPv6· not part of the grade yet Loads over IPv6 with a valid certificate: HTTP 200.
https://consuldesk.online/ via 2607:5300:202::51→ 200
works
What's keeping consuldesk.online from an A
Add IPv6 for www.consuldesk.online www.consuldesk.online has no AAAA record. Get www's IPv6 address from whoever hosts www and add it as an AAAA record. If the same server already serves both names (and its certificate covers www), you can reuse consuldesk.online's AAAA record(s) for www. How to add an AAAA record
Mail servers without IPv6 mx3.mail.ovh.ca, mx1.mail.ovh.ca, mx0.mail.ovh.ca, mx2.mail.ovh.ca have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.
Nameservers without IPv6 dns10.ovh.ca, ns10.ovh.ca 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.