studiegruppen.dk

📜 Historical scan 2026-06-24 09:41:49 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

studiegruppen.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 13 October 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.70 is hosted by team.blue Denmark A/S (AS48854) in Denmark. 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#

4 records 33ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 97ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.70	3600s	linux48.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	94.231.103.70
🔶 Autoconfig	94.231.103.70

🔷 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 2026-10-09 02:14:52

www	185.20.205.76 (AS48854) (address records, no CNAME)
www vs bare domain	Same network studiegruppen.dk: 185.20.205.76 (AS48854) www.studiegruppen.dk: 185.20.205.76 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

66ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'studiegruppen.dk/DS/IN': 127.0.0.1#53

🏷️ SOA#

99ms

Field	Value
Serial	2023102600
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-11 07:19:23

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-10-13
Expires	2026-10-31 (13d)

📋 WHOIS#

⏱️ Lookup Timing#

33ms

97ms

38ms

AAAA

98ms

TXT

182ms

CAA

38ms

HTTPS

43ms

TLSA

44ms

SOA

99ms

MTA-STS

36ms

DNSSEC

66ms

SRV

118ms

Total

612ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 01:36:58	398ms	4 NS 1 A 0 MX	🔒 Secure
2026-10-01 01:26:40	440ms	4 NS 1 A 0 MX	🔒 Secure
2026-09-25 20:46:15	460ms	4 NS 1 A 0 MX	🔒 Secure
2026-08-14 09:56:58	2654ms	4 NS 1 A 0 MX	🔒 Secure
2026-07-02 23:44:41	587ms	4 NS 1 A 0 MX	🔒 Secure
2026-06-24 09:41:49 shown	612ms	4 NS 1 A 0 MX	⚠️ Bogus
2026-06-20 18:51:46	791ms	4 NS 1 A 0 MX	🔒 Secure
2026-06-18 17:32:04	725ms	4 NS 1 A 0 MX	🔒 Secure
2026-06-17 13:22:10	522ms	4 NS 1 A 0 MX	🔒 Secure