teoriundervisningen.dk

📜 Historical scan 2026-06-19 21:19:03  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

teoriundervisningen.dk is a .dk domain served by 4 nameservers (ns1.nhl-data.dk, ns2.nhl-data.dk, ns3.nhl-data.dk and 1 more). It was registered on 18 September 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.206.180.167 is hosted by Public Cloud Ltd. (AS205787) in Germany. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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   41ms
NameserverIP addressesPTRASN / ISP
ns1.nhl-data.dk 185.136.96.11
2a06:fb00:1::1:11		 ns1.nhl-data.dk
ns1.nhl-data.dk		 AS203391 Cloud DNS Ltd
AS203391 Cloud DNS Ltd
ns2.nhl-data.dk 185.136.97.11
2a06:fb00:1::2:11		 ns2.nhl-data.dk
ns2.nhl-data.dk		 AS203391 Cloud DNS Ltd
AS203391 Cloud DNS Ltd
ns3.nhl-data.dk 185.136.98.11
2a06:fb00:1::3:11		 ns3.nhl-data.dk
ns3.nhl-data.dk		 AS203391 Cloud DNS Ltd
AS203391 Cloud DNS Ltd
ns4.nhl-data.dk 185.136.99.11
2a06:fb00:1::4:11		 ns4.nhl-data.dk
ns4.nhl-data.dk		 AS203391 Cloud DNS Ltd
AS203391 Cloud DNS Ltd

🌍 A Records#

2 records   32ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.206.180.167 3600s 42.http-proxy2.cloudns.net AS205787 Public Cloud Ltd. 185.206.180.0/22 🇩🇪 Germany —
185.206.180.185 3600s 185.http4.cloudns.net AS205787 Public Cloud Ltd. 185.206.180.0/22 🇩🇪 Germany —

📧 MX Records#

📧
No MX records found

🔷 AAAA Records (IPv6)#

2 records   41ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a0b:1640:1:1:1013:1:1:1 3600s 185.http4.cloudns.net AS205787 Public Cloud Ltd. 2a0b:1640:1:0:0:0:0:0/48 🇧🇬 Bulgaria —
2a0b:1640:1:1:1:1:1783:3454 3600s http-proxy2.cloudns.net AS205787 Public Cloud Ltd. 2a0b:1640:1:0:0:0:0:0/48 🇧🇬 Bulgaria —

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   263ms
TXT Record
v=spf1 -all

✉️ SPF#

PolicyRecord (teoriundervisningen.dk)
-all (hard fail) v=spf1 -all

📨 DMARC#

PolicyRecord (_dmarc.teoriundervisningen.dk)
p=reject v=DMARC1; p=reject;

📬 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 2026-10-16 22:56:22
www185.206.180.167 185.206.180.185 2a0b:1640:1:1:1013:1:1:1 2a0b:1640:1:1:1:1:1783:3454 (AS205787) (address records, no CNAME)
www vs bare domainSame network
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

134ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

56ms
FieldValue
Serial2026060904
Primary NS (MNAME)ns1.nhl-data.dk
Responsible (RNAME)hostmaster@nhl-data.dk
Refresh10800s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-10 08:07:05
FieldValue
RegistrarNHL DATA ApS
Registered2014-09-18
Expires2027-09-30 (342d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
41ms
A
32ms
MX
53ms
AAAA
41ms
TXT
263ms
CAA
81ms
HTTPS
43ms
TLSA
104ms
SOA
56ms
MTA-STS
60ms
DNSSEC
134ms
SRV
100ms
Total
612ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-04 05:39:46 523ms 4 NS 2 A 0 MX 🔓 Insecure
2026-09-30 10:30:40 529ms 4 NS 2 A 0 MX 🔓 Insecure
2026-09-27 02:04:04 727ms 4 NS 2 A 0 MX 🔓 Insecure
2026-08-27 12:25:37 746ms 4 NS 2 A 0 MX 🔓 Insecure
2026-08-26 17:07:33 763ms 4 NS 2 A 0 MX 🔓 Insecure
2026-08-24 03:18:14 3919ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-25 03:26:59 737ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-19 23:18:46 653ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-19 21:19:03 shown 612ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-18 08:50:20 844ms 4 NS 2 A 0 MX 🔓 Insecure
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