itfjernundervisning.dk

📜 Historical scan 2026-08-21 09:18:07 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

itfjernundervisning.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. Mail is handled by mail.scientdata.dk. The zone is not DNSSEC-signed, publishes a 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#

2 records 102ms

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#

🌍

No A records found

📧 MX Records#

1 records 75ms

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)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 133ms

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

📝 TXT Records#

1 records 318ms

TXT Record
v=spf1 mx ~all

✉️ SPF#

Policy	Record (itfjernundervisning.dk)
~all (soft fail)	v=spf1 mx ~all

📨 DMARC#

Policy	Record (_dmarc.itfjernundervisning.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 2026-10-09 12:28:16

www	NXDOMAIN
www vs bare domain	Neither resolves itfjernundervisning.dk: no address www.itfjernundervisning.dk: no address
Wildcard	No

✍️ 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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.itfjernundervisning.dk	ixV-awGNNHhjIjQIWQPaMF3U91bcXOz85KG6_LDt1Hw
TXT	_acme-challenge.itfjernundervisning.dk	UtmQGYvcyqQCsBFgZHQvGpk8JcuJVaXHnqcDflsGk0c

🔗 TLSA / DANE#

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

🔐 DNSSEC#

300ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2412706294
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 2026-10-09 12:37:32

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2004-08-25
Expires	2027-08-31 (317d)

📋 WHOIS#

⏱️ Lookup Timing#

102ms

76ms

75ms

AAAA

105ms

TXT

318ms

CAA

74ms

HTTPS

60ms

TLSA

144ms

SOA

0ms

MTA-STS

145ms

DNSSEC

300ms

SRV

133ms

Total

1725ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 12:28:16	837ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-28 06:15:21	757ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-22 09:30:35	8057ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-21 09:18:07 shown	1725ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-12 13:59:35	2868ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-20 21:30:35	9308ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-27 00:30:41	1378ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-26 18:50:19	11183ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 16:12:39	1183ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 14:41:36	881ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 12:17:00	1092ms	2 NS 1 A 1 MX	🔓 Insecure