optimalblue.com has no AAAA records.
Apex domains cannot have CNAME records.
Adobe identity provider
Domain verification
adobe-idp-site-verification=e9ea71f6da8c90a284b2128f4f9983b1089f6211cdd6bded643cf42b803da2af
Amazon
Domain verification
amazon-business-verification=8030159f936a5ffcb3d82e5f60263d5b2b3e6f977776767b74d2d432fbb60013
Atlassian
Domain verification
atlassian-domain-verification=cGmlft7V9Yh9OcOirtiDMJGZlucbaCaq/R2OnaKoJ86JJgYlIbf44MgjeWCf4jgY
Atlassian
Domain verification
atlassian-domain-verification=jSGbEem2Lf8cOsL7WzwwoJkTNZZhsmvF1M6u7kQVhqhNhjsaEziEIwAclWjJEUZY
DocuSign
Domain verification
docusign=b35aa50d-c35e-4ff5-b3e1-31963c4774f4
Google
Domain verification
google-site-verification=RP3yCS9d-9I674QAb-UOVxuvi3ryUL7Pjw4aG7XbLy8
Microsoft
Domain verification
MS=ms15909482
Smartsheet
Domain verification
smartsheet-site-validation=RNrVa_ufnI2KZeBVj4WpvxSBrBP5canJ
Twilio
Domain verification
twilio-domain-verification=1062fc92478f522d785600104f8f1510
elgoo7v421ragbtmgvh7cnssap
u959rmfhi0j4fs76nq8imfjhha
ns-1288.awsdns-33.org
Amazon Web Services
Route 53
ns-1854.awsdns-39.co.uk
Amazon Web Services
Route 53
ns-532.awsdns-02.net
Amazon Web Services
Route 53
ns-79.awsdns-09.com
Amazon Web Services
Route 53
Zone apex
Start of authority
Email
Serial
1
Refresh
2h
Retry
15m
Expire
14d
Negative cache TTL
1d