it-fjernundervisning.dk

📜 Historical scan 2026-09-23 22:42:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

it-fjernundervisning.dk is a .dk domain served by 2 nameservers (lars.ns.cloudflare.com, naomi.ns.cloudflare.com). It was registered on 25 August 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.82.237 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.scientdata.dk. 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#

2 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
lars.ns.cloudflare.com	108.162.193.195 172.64.33.195 173.245.59.195 2606:4700:58::adf5:3bc3 2803:f800:50::6ca2:c1c3 2a06:98c1:50::ac40:21c3	lars.ns.cloudflare.com lars.ns.cloudflare.com lars.ns.cloudflare.com lars.ns.cloudflare.com lars.ns.cloudflare.com lars.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
naomi.ns.cloudflare.com	108.162.192.208 172.64.32.208 173.245.58.208 2606:4700:50::adf5:3ad0 2803:f800:50::6ca2:c0d0 2a06:98c1:50::ac40:20d0	naomi.ns.cloudflare.com naomi.ns.cloudflare.com naomi.ns.cloudflare.com naomi.ns.cloudflare.com naomi.ns.cloudflare.com naomi.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.82.237	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.209.72	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 48ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	mail.scientdata.dk	91.98.102.141	mail.scientdata.dk	AS24940 Hetzner Online GmbH

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	mail.scientdata.dk → 91.98.102.141
🔶 Autoconfig	mail.scientdata.dk → 91.98.102.141

🔷 AAAA Records (IPv6)#

2 records 41ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:52ed	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:d148	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 66ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.82.237,172.67.209.72 ech=AEX+DQBB+AAgACCjttvskNGdVh0hbw4VhGXYjkOM2/rfowahxHuhHM+3cgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:52ed,2606:4700:3037::ac43:d148

🔌 SRV Records#

1 records 75ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	1	443	mail.scientdata.dk

📝 TXT Records#

1 records 206ms

TXT Record
v=spf1 mx ~all

✉️ SPF#

Policy	Record (it-fjernundervisning.dk)
~all (soft fail)	v=spf1 mx ~all

📨 DMARC#

Policy	Record (_dmarc.it-fjernundervisning.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 2026-10-23 17:07:32

www	104.21.82.237 172.67.209.72 2606:4700:3031::6815:52ed 2606:4700:3037::ac43:d148 (AS13335) (address records, no CNAME)
www vs bare domain	Same network it-fjernundervisning.dk: 104.21.82.237 172.67.209.72 2606:4700:3031::6815:52ed 2606:4700:3037::ac43:d148 (AS13335) www.it-fjernundervisning.dk: 104.21.82.237 172.67.209.72 2606:4700:3031::6815:52ed 2606:4700:3037::ac43:d148 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
dkim	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

76ms

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	2414754522
Primary NS (MNAME)	lars.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-19 01:25:54

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2004-08-25
Expires	2027-08-31 (308d)

🔗 Same registrant#

18 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
bestemselvteksten.dk	Punktum dk A/S (direct)
fam-ostergaard.dk	Punktum dk A/S (direct)
fam-ulstrup.dk	Punktum dk A/S (direct)
fam-østergaard.dk	Punktum dk A/S (direct)
itfjernundervisning.dk	Punktum dk A/S (direct)
madsostergaard.dk	Punktum dk A/S (direct)
madsøstergaard.dk	Punktum dk A/S (direct)
musiksusanne.dk	Punktum dk A/S (direct)
nh-kontoret.dk	Punktum dk A/S (direct)
nhkontoret.dk	Punktum dk A/S (direct)
postkasselabels.dk	Punktum dk A/S (direct)
postkassemaerkater.dk	Punktum dk A/S (direct)
postkassemaerker.dk	Punktum dk A/S (direct)
postkassemærkater.dk	Punktum dk A/S (direct)
postkassemærker.dk	Punktum dk A/S (direct)
scient-data.dk	Punktum dk A/S (direct)
scientdata.dk	Punktum dk A/S (direct)
stoppestedetnh.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

48ms

AAAA

41ms

TXT

206ms

CAA

49ms

HTTPS

66ms

TLSA

68ms

SOA

0ms

MTA-STS

74ms

DNSSEC

76ms

SRV

75ms

Total

642ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 17:07:32	768ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-22 04:56:01	2193ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 04:42:27	704ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 22:42:47 shown	642ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-17 23:45:06	2208ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-10 22:14:31	2574ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-19 11:42:45	1157ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-14 19:43:29	9982ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-13 09:40:21	9699ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 22:30:59	1532ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 00:56:09	1855ms	2 NS 2 A 1 MX	🔓 Insecure