dmuddannelse.dk

📜 Historical scan 2026-06-17 03:55:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dmuddannelse.dk is a .dk domain served by 2 nameservers (javier.ns.cloudflare.com, melissa.ns.cloudflare.com). It was registered on 26 June 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.91.53 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 29ms

Nameserver	IP addresses	PTR	ASN / ISP
javier.ns.cloudflare.com	—	—	—
melissa.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.91.53	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.167.78	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	aspmx.l.google.com	209.85.233.26	lr-in-f26.1e100.net	AS15169 Google LLC
5	—	alt1.aspmx.l.google.com	172.253.158.26	so-in-f26.1e100.net	AS15169 Google LLC
5	—	alt2.aspmx.l.google.com	172.253.158.27	so-in-f27.1e100.net	AS15169 Google LLC
10	—	alt3.aspmx.l.google.com	172.253.158.27	so-in-f27.1e100.net	AS15169 Google LLC
10	—	alt4.aspmx.l.google.com	192.178.230.27	yunrtab-in-f27.1e100.net	AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 28ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:a74e	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:5b35	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 27ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.91.53,172.67.167.78 ech=AEX+DQBBbgAgACB4DR5gWJfMb8ThEudjXgbdGijjNCs106cx5Oz3+3/wBAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:a74e,2606:4700:3034::6815:5b35

📝 TXT Records#

1 records 155ms

TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.dmuddannelse.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 2026-10-19 05:29:33

www	104.21.91.53 172.67.167.78 2606:4700:3037::6815:5b35 2606:4700:3037::ac43:a74e (AS13335) (address records, no CNAME)
www vs bare domain	Same network dmuddannelse.dk: 104.21.91.53 172.67.167.78 2606:4700:3037::6815:5b35 2606:4700:3037::ac43:a74e (AS13335) www.dmuddannelse.dk: 104.21.91.53 172.67.167.78 2606:4700:3037::6815:5b35 2606:4700:3037::ac43:a74e (AS13335)
Wildcard	No

✍️ DKIM keys#

6 found

Selector	CNAME	Key
dkim	—	RSA Invalid key data — receivers can't verify signatures
google	—	RSA Invalid key data — receivers can't verify signatures
k1	—	RSA Invalid key data — receivers can't verify signatures
mail	—	RSA Invalid key data — receivers can't verify signatures
s1	—	RSA Invalid key data — receivers can't verify signatures
s2	—	RSA Invalid key data — receivers can't verify signatures

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: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

107ms

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

🏷️ SOA#

26ms

Field	Value
Serial	2404025847
Primary NS (MNAME)	javier.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-12 16:26:15

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2017-06-26
Expires	2027-06-30 (253d)

🔗 Same registrant#

1 domain

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
dmudd.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

29ms

27ms

30ms

AAAA

28ms

TXT

155ms

CAA

30ms

HTTPS

27ms

TLSA

95ms

SOA

26ms

MTA-STS

51ms

DNSSEC

107ms

SRV

0ms

Total

659ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-19 05:29:33	536ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-27 05:51:21	1368ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-08 19:51:23	1276ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-27 11:45:30	1232ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-26 22:24:57	9874ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-25 03:49:23	9964ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-24 03:11:05	5823ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-21 02:48:12	7699ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-02 21:03:40	2342ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-27 19:13:57	1041ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-24 06:55:45	2436ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 03:55:47 shown	659ms	2 NS 2 A 5 MX	🔓 Insecure