Apex domains cannot have CNAME records.
Duo
Domain verification
duo_sso_verification=BHuW58xMLvuxeUSeISs7ZsjY2NeHciAWZP1DKEmfIEQAFs6uZskg19LKeRNlvhzA
Google
Domain verification
google-site-verification=dWNOrMVLS7uXFmsfqNJEe1cqYbUSp52FzOQL6cxDevc
Microsoft
Domain verification
MS=ms53249166
0x0hk81yq5dgkkdp97ctzmdz7yzj4z1l
3sr784qj6dkpzntz24mg4khhgrzw17bj
43y5cd446strqmddzcqn8jcd0wsyvxzj
4wnmdjd820nk75x0v4w17279jdlmxh3k
8UpCpWl8jIvQtrRUVNJH30KKcdO608rJVvWRtNatQph7jB8DCNVtVUeamp4p/9G4kiNth0us3XKqoWWXgyDfFA==
_hrf59u78afwwm6a1912q7jds1g4n030
bs7pzdspvkdb0bm90b7x39zl5cdw2jsy
d3pf79786n16p3prdl88dhdqf900ggml
db8gtx1s09x2hs4rqhlsk2nr47y6m507
plp8lhpzvftrx7tshrlphq9zvj2rcrgf
w576rmhbm1tyv0z9tbq5zcyg63ydqxk4
xwtj1qkncd14d0nsrk56xnr05z1qq8kc
rita.ns.cloudflare.com
Cloudflare
tim.ns.cloudflare.com
Cloudflare
Zone apex
Start of authority
Email
Serial
2397430994
Refresh
2h 46m 40s
Retry
40m
Expire
7d
Negative cache TTL
30m