dcu-sj.dk

📜 Historical scan 2026-06-23 04:35:14 · ← 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 and validates, 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 34ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.155.83.174	600s	3113964463.cgn.nefnet.dk	AS47304	nef Fonden	185.155.80.0/22	🇩🇰 Denmark	Agedrup

📧 MX Records#

2 records 81ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	21600s	mail.dcu-sj.dk	185.155.83.174	3113964463.cgn.nefnet.dk	AS47304 nef Fonden
20	21600s	backup-mx.post.tele.dk	—	—	—

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	185.155.83.174
🔶 Autoconfig	185.155.83.174

🔷 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#

80ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

41ms

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#

34ms

51ms

81ms

AAAA

53ms

TXT

217ms

CAA

109ms

HTTPS

114ms

TLSA

114ms

SOA

41ms

MTA-STS

116ms

DNSSEC

80ms

SRV

164ms

Total

721ms

🕐 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 shown	721ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-17 01:25:27	405ms	2 NS 1 A 2 MX	⚠️ Bogus
2026-06-17 01:20:11	701ms	2 NS 1 A 2 MX	🔒 Secure