teori-undervisning.dk

📜 Historical scan 2026-06-18 00:15:44  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

teori-undervisning.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   78ms
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   74ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.206.180.167 — 42.http-proxy2.cloudns.net AS205787 Public Cloud Ltd. 185.206.180.0/22 🇩🇪 Germany —
185.206.180.185 — 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   74ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a0b:1640:1:1:1013:1:1:1 — 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 — 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   201ms
TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

PolicyRecord (_dmarc.teori-undervisning.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 2026-10-11 10:08:26
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#

78ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

40ms
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 2026-10-25 02:32:08
FieldValue
RegistrarNHL DATA ApS
Registered2014-09-18
Expires2027-09-30 (340d)

🔗 Same registrant#

11 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).

DomainRegistrar
bedsteteoriprøver.dkPunktum dk A/S (direct)
dennyeteoriprøve.dkNHL DATA ApS
klarteori.dkNHL DATA ApS
køreteoriprøve.dkPunktum dk A/S (direct)
teoriklare.dkNHL DATA ApS
teoriklaret.dkNHL DATA ApS
teoriklart.dkNHL DATA ApS
teoriproven.dkPunktum dk A/S (direct)
teoritestonline.dkNHL DATA ApS
teoriundervisning.dkNHL DATA ApS
undervisningssystem.dkNHL DATA ApS
📋 WHOIS#

⏱️ Lookup Timing#

NS
78ms
A
74ms
MX
78ms
AAAA
74ms
TXT
201ms
CAA
75ms
HTTPS
48ms
TLSA
56ms
SOA
40ms
MTA-STS
65ms
DNSSEC
78ms
SRV
128ms
Total
661ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-01 01:58:17 700ms 4 NS 2 A 0 MX 🔓 Insecure
2026-09-30 07:35:12 579ms 4 NS 2 A 0 MX 🔓 Insecure
2026-08-24 06:56:11 3508ms 4 NS 2 A 0 MX 🔓 Insecure
2026-08-23 00:48:25 2903ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-24 03:08:30 804ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-23 05:39:03 1160ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-21 08:05:16 986ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-21 07:25:46 914ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-18 00:15:44 shown 661ms 4 NS 2 A 0 MX 🔓 Insecure
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