xyz/NS: No response was received from the server over UDP (tried 7 times) until the COOKIE EDNS option was removed (however, this server appeared to respond legitimately to other queries with the COOKIE EDNS option present). See RFC 6891, Sec. 6.1.2. (2a04:2b00:13ee::42, UDP_-_EDNS0_4096_D_KN)