Has an IPv4 address but no IPv6 (AAAA) record. IPv6-only visitors can't reach it directly.
D
IPv6 readiness
The website has no IPv6.
Website over IPv6 msgwa-whatsapp.com has no AAAA record.
no
www over IPv6 www.msgwa-whatsapp.com has no AAAA record.
no
Mail servers (MX) have IPv6 No MX records, so mail goes to the domain's own address (implicit MX). It has no AAAA record.
no
Nameservers have IPv6 The NS lookup failed.
?
What's keeping msgwa-whatsapp.com from an A
msgwa-whatsapp.com is an alias of sndzf4xu.abc2027aa.ru, which has no IPv6 msgwa-whatsapp.com is a CNAME, so it can't also have its own AAAA record. Ask whoever runs sndzf4xu.abc2027aa.ru to enable IPv6 there — or replace the alias with the A and AAAA records they give you. Why some hosts don't offer IPv6
www.msgwa-whatsapp.com is an alias of sndzf4xu.abc2027aa.ru, which has no IPv6 www.msgwa-whatsapp.com is a CNAME, so it can't also have its own AAAA record. Ask whoever runs sndzf4xu.abc2027aa.ru to enable IPv6 there — or replace the alias with the A and AAAA records they give you. Why some hosts don't offer IPv6
Mail servers without IPv6 Your domain's mail goes to its own address, which has no AAAA record.
Visitors on IPv6-only networks (many mobile carriers) can still reach it, but only through a translator their carrier runs (NAT64). The site itself has no IPv6 address — and you can't make one up from the IPv4. Why some hosts don't offer it
Copy the evidence— a citation-ready record of this measurement