ye93m.tyudf.iij.ad.jp/A has errors; select the "Denial of existence" DNSSEC option to see them.
iij.ad.jp/CDNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
iij.ad.jp/CDS has errors; select the "Denial of existence" DNSSEC option to see them.
iij.ad.jp/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.
Warnings (5)
./DNSKEY: The server appears to support DNS cookies but did not return a COOKIE option. See RFC 7873, Sec. 5.2.3. (2001:500:2f::f, UDP_-_EDNS0_512_D_KN)
ye93m.tyudf.iij.ad.jp/A has warnings; select the "Denial of existence" DNSSEC option to see them.
iij.ad.jp/CDNSKEY has warnings; select the "Denial of existence" DNSSEC option to see them.
iij.ad.jp/CDS has warnings; select the "Denial of existence" DNSSEC option to see them.
iij.ad.jp/CNAME has warnings; select the "Denial of existence" DNSSEC option to see them.