dcu-sj.dk

📜 Historical scan 2026-06-17 01:25:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dcu-sj.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 19 September 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.155.83.174 is hosted by nef Fonden (AS47304) in Denmark. Mail is handled by mail.dcu-sj.dk, backup-mx.post.tele.dk. The zone is DNSSEC-signed but currently fails validation, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 39ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	—	—	—
ns02.one.com	—	—	—

🌍 A Records#

1 records 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.155.83.174	—	3113964463.cgn.nefnet.dk	AS47304	nef Fonden	185.155.80.0/22	🇩🇰 Denmark	Agedrup

📧 MX Records#

2 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mail.dcu-sj.dk	185.155.83.174	3113964463.cgn.nefnet.dk	AS47304 nef Fonden
20	—	backup-mx.post.tele.dk	—	—	—

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-07 17:07:51

www	185.155.83.174 (AS47304) (address records, no CNAME)
www vs bare domain	Same network dcu-sj.dk: 185.155.83.174 (AS47304) www.dcu-sj.dk: 185.155.83.174 (AS47304)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

74ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: insecurity proof failed

🏷️ SOA#

34ms

Field	Value
Serial	2026032401
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-07 17:13:24

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-09-19
Expires	2027-09-30 (348d)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

34ms

42ms

AAAA

35ms

TXT

119ms

CAA

43ms

HTTPS

37ms

TLSA

66ms

SOA

34ms

MTA-STS

72ms

DNSSEC

74ms

SRV

0ms

Total

405ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 17:07:51	2101ms	2 NS 1 A 2 MX	🔒 Secure
2026-10-01 15:40:20	2514ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-25 14:33:58	2490ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-24 00:59:05	749ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-03 12:26:48	663ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-28 06:29:17	619ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-26 11:39:36	663ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-16 18:42:57	955ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-09 20:25:07	8858ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-25 01:08:33	2650ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-24 04:16:13	1163ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-23 04:35:14	721ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-17 01:25:27 shown	405ms	2 NS 1 A 2 MX	⚠️ Bogus
2026-06-17 01:20:11	701ms	2 NS 1 A 2 MX	🔒 Secure