Apex domains cannot have CNAME records.
Cisco CI
Domain verification
cisco-ci-domain-verification=519486b5bb07bfdb69e0676c2175f9f07b20a5170f5221b401bc58f3b6e0f53
Cisco CI
Domain verification
ciscocidomainverification=448369bb6a2532b17c750c598e91a4c8f6db931e5c194517e0bb36f38edb094
GlobalSign
Domain verification
globalsign-domain-verification=15982931FD086CDCAEBF757C062500AF
GlobalSign
Domain verification
globalsign-domain-verification=4A6510378CD95D596F1608E1342A63C9
GlobalSign
Domain verification
globalsign-domain-verification=81F837F4DC4A499FADB09FE9C07E0E21
GlobalSign
Domain verification
globalsign-domain-verification=8511B00DB55A5EAF354F07D35A6FEAFB
GlobalSign
Domain verification
globalsign-domain-verification=91E2295FDFFBDD0A56989355CFE2518F
GlobalSign
Domain verification
globalsign-domain-verification=F66B421D086981AC1F7E4BA76C288577
Google
Domain verification
google-site-verification=8SDZXHCmVb295wafM1gwDrFq1v-iivAENZy_FZmpv8c
Google
Domain verification
google-site-verification=snbzYZX9eQzp_TAhNgS1xsurcF4Vm_Y-Fsu_M8CRk8A
KnowBe4
Domain verification
knowbe4-site-verification=30933b22759e13d927e4d7290396ab52
Microsoft
Domain verification
MS=ms65738323
Trend Micro Email Security
Domain verification
tmes=059dec5fc1f70880690c5ed9f78ea881