cvut.cz/DS (alg 13, id 41860): The server appears to support DNS cookies but did not return a COOKIE option. (2001:678:11::1, UDP_-_EDNS0_4096_D_K)
cvut.cz/DS (alg 13, id 41860): The server appears to support DNS cookies but did not return a COOKIE option. (2001:678:11::1, UDP_-_EDNS0_4096_D_K)
cz/DNSKEY (alg 13, id 17880): The server appears to support DNS cookies but did not return a COOKIE option. (2001:678:1::1, 2001:678:11::1, UDP_-_EDNS0_4096_D_K, UDP_-_EDNS0_512_D_K)
cz/DNSKEY (alg 13, id 20237): The server appears to support DNS cookies but did not return a COOKIE option. (2001:678:1::1, 2001:678:11::1, UDP_-_EDNS0_4096_D_K, UDP_-_EDNS0_512_D_K)