emailcenteruk.com has no AAAA records.
Apex domains cannot have CNAME records.
Apple
Domain verification
apple-domain-verification=GcwLhqT0RJw2i7By4L50UY0QlUsPc1bFPCswqGctMTw
Apple
Domain verification
apple-domain-verification=Tf7PkDTeWQEBfNkO
Atlassian
Domain verification
atlassian-domain-verification=snx4XoS4Fe90UfRKJBGy1DoihRbhpDqMTYKdV+iAaDXw+ixw9+ZQMHZXJun0FEYT
Google
Domain verification
google-site-verification=OMbqWP7QAiVwUFT5jCkHmvvWTWt-t4DCw6bVCIIbL-w
Google
Domain verification
google-site-verification=rN79gBi7GqioAZDmfkiUlhQgQwNh_34izZoQZx5sAVQ
Microsoft
Domain verification
MS=ms71735387
Slack
Domain verification
slack-domain-verification=7F2mHnOXejjowog4Y5tV9Z86EB66GFXl9nah6lF2
Yahoo
Domain verification
yahoo-verification-key=6b2oPdXugDBWuV0+CahWBPMNGDMQxd48ZCd1XoSjDlE=
ns-1199.awsdns-21.org
Amazon Web Services
Route 53
ns-1811.awsdns-34.co.uk
Amazon Web Services
Route 53
ns-36.awsdns-04.com
Amazon Web Services
Route 53
ns-621.awsdns-13.net
Amazon Web Services
Route 53
Zone apex
Start of authority
Email
Serial
1
Refresh
2h
Retry
15m
Expire
14d
Negative cache TTL
1d