admin.ch/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (4)
ch to admin.ch: Authoritative AAAA records exist for ins3.admin.ch, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
cloudfront.net to d23vgpvjcg53nf.cloudfront.net: The server(s) for the parent zone (cloudfront.net) responded with a referral instead of answering authoritatively for the DS RR type. See RFC 4034, Sec. 5. (205.251.193.162, 205.251.194.154, 205.251.197.26, 205.251.198.61, 2600:9000:5301:a200::1, 2600:9000:5302:9a00::1, 2600:9000:5305:1a00::1, 2600:9000:5306:3d00::1, UDP_-_EDNS0_4096_D_K)
net to cloudfront.net: Authoritative AAAA records exist for ns-666.awsdns-19.net, but there are no corresponding AAAA glue records. See RFC 1034, Sec. 4.2.2.
admin.ch/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.