uber.com to cfe.uber.com: No delegation NS records were detected in the parent zone (uber.com). This results in an NXDOMAIN response to a DS query (for DNSSEC), even if the parent servers are authoritative for the child. See RFC 1034, Sec. 4.2.2. (204.74.66.126, 204.74.67.126, 204.74.110.126, 204.74.111.126, 2001:502:4612::27e, 2001:502:f3ff::27e, 2610:a1:1014::27e, 2610:a1:1015::27e, UDP_-_EDNS0_4096_D_KN)