sp.edu.sg

Updated: 2023-01-10 07:29:07 UTC (627 days ago) Go to most recent »

DNSSEC options (hide)

|?| RR types:
|?| DNSSEC algorithms:
|?| DS digest algorithms:
|?| Denial of existence:
|?| Redundant edges:
|?| Ignore RFC 8624:
|?| Ignore RFC 9276:
|?| Multi-signer:
|?| Trust anchors:
- Root zone KSK
|?| Additional trusted keys:

Notices

DNSSEC Authentication Chain

RRset status

Insecure (6)

sp.edu.sg/A
sp.edu.sg/AAAA
sp.edu.sg/MX
sp.edu.sg/NS
sp.edu.sg/SOA
sp.edu.sg/TXT

Secure (1)

edu.sg/SOA

DNSKEY/DS/NSEC status

Insecure (3)

sp.edu.sg/DNSKEY (alg 13, id 5015)
sp.edu.sg/DNSKEY (alg 13, id 56518)
sp.edu.sg/DNSKEY (alg 13, id 57603)

Secure (12)

./DNSKEY (alg 8, id 18733)
./DNSKEY (alg 8, id 20326)
./DNSKEY (alg 8, id 951)
NSEC3 proving non-existence of sp.edu.sg/DS
edu.sg/DNSKEY (alg 8, id 10130)
edu.sg/DNSKEY (alg 8, id 36969)
edu.sg/DNSKEY (alg 8, id 5031)
edu.sg/DS (alg 8, id 10130)
sg/DNSKEY (alg 8, id 27933)
sg/DNSKEY (alg 8, id 27954)
sg/DNSKEY (alg 8, id 46664)
sg/DS (alg 8, id 46664)

Delegation status

Insecure (1)

edu.sg to sp.edu.sg

Secure (2)

. to sg
sg to edu.sg

Notices

Errors (16)

NSEC3 proving non-existence of sp.edu.sg/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
NSEC3 proving non-existence of sp.edu.sg/DS: An iterations count of 0 must be used in NSEC3 records to alleviate computational burdens. See RFC 9276, Sec. 3.1.
sp.edu.sg/A: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (205.251.192.154, 205.251.195.239, 205.251.196.214, 205.251.199.54, 2600:9000:5300:9a00::1, 2600:9000:5303:ef00::1, 2600:9000:5304:d600::1, 2600:9000:5307:3600::1, UDP_-_EDNS0_4096_D_KN)
sp.edu.sg/AAAA: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (205.251.192.154, 205.251.195.239, 205.251.196.214, 205.251.199.54, 2600:9000:5300:9a00::1, 2600:9000:5303:ef00::1, 2600:9000:5304:d600::1, 2600:9000:5307:3600::1, UDP_-_EDNS0_4096_D_KN)
sp.edu.sg/DNSKEY (alg 13, id 5015): No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (205.251.192.154, 205.251.195.239, 205.251.196.214, 205.251.199.54, 2600:9000:5300:9a00::1, 2600:9000:5303:ef00::1, 2600:9000:5304:d600::1, 2600:9000:5307:3600::1, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
sp.edu.sg/DNSKEY (alg 13, id 56518): No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (205.251.192.154, 205.251.195.239, 205.251.196.214, 205.251.199.54, 2600:9000:5300:9a00::1, 2600:9000:5303:ef00::1, 2600:9000:5304:d600::1, 2600:9000:5307:3600::1, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
sp.edu.sg/DNSKEY (alg 13, id 57603): No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (205.251.192.154, 205.251.195.239, 205.251.196.214, 205.251.199.54, 2600:9000:5300:9a00::1, 2600:9000:5303:ef00::1, 2600:9000:5304:d600::1, 2600:9000:5307:3600::1, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
sp.edu.sg/MX: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (205.251.192.154, 205.251.195.239, 205.251.196.214, 205.251.199.54, 2600:9000:5300:9a00::1, 2600:9000:5303:ef00::1, 2600:9000:5304:d600::1, 2600:9000:5307:3600::1, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_512_D_KN)
sp.edu.sg/NS: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (205.251.192.154, 205.251.195.239, 205.251.196.214, 205.251.199.54, 2600:9000:5300:9a00::1, 2600:9000:5303:ef00::1, 2600:9000:5304:d600::1, 2600:9000:5307:3600::1, UDP_-_EDNS0_4096_D_KN)
sp.edu.sg/SOA: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (205.251.192.154, 205.251.195.239, 205.251.196.214, 205.251.199.54, 2600:9000:5300:9a00::1, 2600:9000:5303:ef00::1, 2600:9000:5304:d600::1, 2600:9000:5307:3600::1, TCP_-_EDNS0_4096_D_N, UDP_-_EDNS0_4096_D_KN, UDP_-_EDNS0_4096_D_KN_0x20)
sp.edu.sg/TXT: No RRSIG covering the RRset was returned in the response. See RFC 4035, Sec. 3.1.1. (205.251.192.154, 205.251.195.239, 205.251.196.214, 205.251.199.54, 2600:9000:5300:9a00::1, 2600:9000:5303:ef00::1, 2600:9000:5304:d600::1, 2600:9000:5307:3600::1, UDP_-_EDNS0_4096_D_KN)
sp.edu.sg/DNSKEY has errors; select the "Denial of existence" DNSSEC option to see them.
ar3qo74db1.sp.edu.sg/A has errors; select the "Denial of existence" DNSSEC option to see them.
sp.edu.sg/NSEC3PARAM has errors; select the "Denial of existence" DNSSEC option to see them.
sp.edu.sg/DS has errors; select the "Denial of existence" DNSSEC option to see them.
sp.edu.sg/CNAME has errors; select the "Denial of existence" DNSSEC option to see them.

Warnings (3)

NSEC3 proving non-existence of sp.edu.sg/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
NSEC3 proving non-existence of sp.edu.sg/DS: The salt value for an NSEC3 record should be empty. See RFC 9276, Sec. 3.1.
sp.edu.sg/DS has warnings; select the "Denial of existence" DNSSEC option to see them.