klarteori.dk

📜 Historical scan 2026-06-27 15:54:14 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

klarteori.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 3 November 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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 233ms

Nameserver	IP addresses	PTR	ASN / 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#

🌍

No A records found

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 221ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
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 846ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (klarteori.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.klarteori.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-08 12:46:48

www	185.206.180.167 185.206.180.185 2a0b:1640:1:1:1013:1:1:1 2a0b:1640:1:1:1:1:1783:3454 (AS205787) (address records, no CNAME)
www vs bare domain	Same network klarteori.dk: 185.206.180.167 185.206.180.185 2a0b:1640:1:1:1013:1:1:1 2a0b:1640:1:1:1:1:1783:3454 (AS205787) www.klarteori.dk: 185.206.180.167 185.206.180.185 2a0b:1640:1:1:1013:1:1:1 2a0b:1640:1:1:1:1:1783:3454 (AS205787)
Wildcard	No

🔎 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#

423ms

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

🏷️ SOA#

242ms

Field	Value
Serial	2026060801
Primary NS (MNAME)	ns1.nhl-data.dk
Responsible (RNAME)	hostmaster@nhl-data.dk
Refresh	10800s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-15 14:38:49

Field	Value
Registrar	NHL DATA ApS
Registered	2023-11-03
Expires	2026-11-02 (6d)

🔗 Same registrant#

13 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
bedsteteoriprøver.dk	Punktum dk A/S (direct)
dennyeteoriprøve.dk	NHL DATA ApS
denyeteoriprøver.dk	NHL DATA ApS
køreteoriprøve.dk	Punktum dk A/S (direct)
onlineteoriprøve.dk	NHL DATA ApS
teori-undervisning.dk	NHL DATA ApS
teoriklare.dk	NHL DATA ApS
teoriklaret.dk	NHL DATA ApS
teoriklart.dk	NHL DATA ApS
teoriproven.dk	Punktum dk A/S (direct)
teoritestonline.dk	NHL DATA ApS
teoriundervisning.dk	NHL DATA ApS
undervisningssystem.dk	NHL DATA ApS

📋 WHOIS#

⏱️ Lookup Timing#

233ms

527ms

241ms

AAAA

221ms

TXT

846ms

CAA

248ms

HTTPS

209ms

TLSA

105ms

SOA

242ms

MTA-STS

265ms

DNSSEC

423ms

SRV

294ms

Total

1682ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 07:23:03	626ms	4 NS 2 A 0 MX	🔓 Insecure
2026-09-24 01:19:01	9449ms	4 NS 2 A 0 MX	🔓 Insecure
2026-06-27 15:54:14 shown	1682ms	4 NS 0 A 0 MX	🔓 Insecure
2026-06-23 03:04:48	724ms	4 NS 2 A 0 MX	🔓 Insecure
2026-06-22 20:47:13	2556ms	4 NS 2 A 0 MX	🔓 Insecure
2026-06-17 13:35:47	2230ms	4 NS 2 A 0 MX	🔓 Insecure