dgco.dk

📜 Historical scan 2026-08-11 16:17:55 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dgco.dk is a .dk domain served by 2 nameservers (ns3.au.dk, ns4.au.dk). It was registered on 30 September 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.45.20.49 is hosted by Aarhus Universitet (AS62138) in Denmark. The zone is not DNSSEC-signed, publishes a 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 45ms

Nameserver	IP addresses	PTR	ASN / ISP
ns3.au.dk	20.73.178.34	ns3.au.dk	AS8075 Microsoft Corporation
ns4.au.dk	185.45.20.154	ns4.au.dk	AS62138 Aarhus Universitet

🌍 A Records#

1 records 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.45.20.49	300s	ced-apps.au.dk coursesetup-test.carsten.medu.au.dk dashboard-gios.au.dk er-det-fredag-i-ffb.dk ipure8.au.dk test-ced-apps.au.dk	AS62138	Aarhus Universitet	185.45.20.0/22	🇩🇰 Denmark	Aarhus

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 245ms

TXT Record
v=spf1 include:spf.au.dk -all

✉️ SPF#

Policy	Record (dgco.dk)
-all (hard fail)	v=spf1 include:spf.au.dk -all

📨 DMARC#

Policy	Record (_dmarc.dgco.dk)
p=reject	v=DMARC1;p=reject;pct=100;rua=mailto:ced1e70d2c70635@rep.dmarcanalyzer.com;ruf=mailto:ced1e70d2c70635@for.dmarcanalyzer.com;aspf=r;

📬 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 2026-10-10 14:52:53

www	185.45.20.49 (AS62138) (address records, no CNAME)
www vs bare domain	Same network dgco.dk: 185.45.20.49 (AS62138) www.dgco.dk: 185.45.20.49 (AS62138)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

83ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2005092803
Primary NS (MNAME)	infobloxgm3.au.dk
Responsible (RNAME)	staff@au.dk
Refresh	3600s
Retry	360s
Expire	3600000s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-14 13:37:40

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2005-09-30
Expires	2027-09-30 (348d)

🔗 Same registrant#

5 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
dahanca.dk	Punktum dk A/S (direct)
dmcg.dk	Punktum dk A/S (direct)
melanoma.dk	Punktum dk A/S (direct)
sun-data.dk	Punktum dk A/S (direct)
sundata.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

45ms

51ms

45ms

AAAA

53ms

TXT

245ms

CAA

45ms

HTTPS

54ms

TLSA

56ms

SOA

0ms

MTA-STS

71ms

DNSSEC

83ms

SRV

76ms

Total

622ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 14:52:53	577ms	2 NS 1 A 0 MX	🔓 Insecure
2026-09-25 04:00:51	920ms	2 NS 1 A 0 MX	🔓 Insecure
2026-08-28 03:25:11	2454ms	2 NS 1 A 0 MX	🔓 Insecure
2026-08-11 16:17:55 shown	622ms	2 NS 1 A 0 MX	🔓 Insecure
2026-06-21 02:08:54	500ms	2 NS 1 A 0 MX	🔓 Insecure
2026-06-17 02:35:31	434ms	2 NS 1 A 0 MX	🔓 Insecure