dmuddannelse.dk

📜 Historical scan 2026-08-24 03:11:05 · ← 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 293ms

Nameserver	IP addresses	PTR	ASN / ISP
javier.ns.cloudflare.com	108.162.195.204 162.159.44.204 172.64.35.204 2606:4700:58::a29f:2ccc 2803:f800:50::6ca2:c3cc 2a06:98c1:50::ac40:23cc	javier.ns.cloudflare.com javier.ns.cloudflare.com javier.ns.cloudflare.com javier.ns.cloudflare.com javier.ns.cloudflare.com javier.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
melissa.ns.cloudflare.com	108.162.192.199 172.64.32.199 173.245.58.199 2606:4700:50::adf5:3ac7 2803:f800:50::6ca2:c0c7 2a06:98c1:50::ac40:20c7	melissa.ns.cloudflare.com melissa.ns.cloudflare.com melissa.ns.cloudflare.com melissa.ns.cloudflare.com melissa.ns.cloudflare.com melissa.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 280ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.91.53	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.167.78	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 310ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	142.251.127.26 2a00:1450:4001:c21::1b	lcfrai-in-f26.1e100.net lcfrai-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	142.250.147.26 2a00:1450:4025:c01::1b	rd-in-f26.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	172.253.152.26 2a00:1450:4010:c22::1a	yulpptr-in-f26.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 304ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3037::6815:5b35	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:a74e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 276ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.91.53,172.67.167.78 ech=AEX+DQBBywAgACBPN5ywDnikoHkuqZfJAT5lnj+3/jUcWaKHlz2inJ2qTAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3037::6815:5b35,2606:4700:3037::ac43:a74e

📝 TXT Records#

1 records 569ms

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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.dmuddannelse.dk	-6zxVknOvDOFIb-ajcRzXp8dlIgLwT9iUZ0JHRNVgWc
TXT	_acme-challenge.dmuddannelse.dk	qAt6jqGaKFUDmGMePjUF4GeOXQSc7Brp_6scunKPlBU

🔗 TLSA / DANE#

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

🔐 DNSSEC#

453ms

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	2412962933
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 (251d)

🔗 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#

293ms

280ms

310ms

AAAA

304ms

TXT

569ms

CAA

309ms

HTTPS

276ms

TLSA

319ms

SOA

0ms

MTA-STS

341ms

DNSSEC

453ms

SRV

379ms

Total

5823ms

🕐 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 shown	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	659ms	2 NS 2 A 5 MX	🔓 Insecure