dmuddannelse.dk

📜 Historical scan 2026-07-02 21:03:40  ·  ← 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   30ms
NameserverIP addressesPTRASN / 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   37ms
IPTTLPTRASNISP / OrgCIDRCountryCity
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   40ms
PriorityTTLMail ServerIP addressesPTRASN
1 300s aspmx.l.google.com 2a00:1450:4010:c22::1b
64.233.164.26		 yulpptr-in-f27.1e100.net
lf-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
5 300s alt1.aspmx.l.google.com 192.178.158.27
2404:6800:4013:813::1a		 lcdels-in-f27.1e100.net
lcdels-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
5 300s alt2.aspmx.l.google.com 172.253.158.26
2404:6800:4003:c26::1b		 so-in-f26.1e100.net
so-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
10 300s alt3.aspmx.l.google.com 108.177.125.27
2404:6800:4008:c01::1a		 tp-in-f27.1e100.net
tp-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
10 300s alt4.aspmx.l.google.com 192.178.230.26
2404:6800:400b:c01b::1a		 yunrtab-in-f26.1e100.net
yunrtab-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records   34ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
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   40ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.91.53,172.67.167.78 ech=AEX+DQBBUAAgACDQONBPUwX7HzhutD0M8qBU6WXBvplcu6O3T0wZGYxmFwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3037::6815:5b35,2606:4700:3037::ac43:a74e

📝 TXT Records#

1 records   167ms
TXT Record
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

PolicyRecord (_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 2026-10-09 14:09:29
www104.21.91.53 172.67.167.78 2606:4700:3037::6815:5b35 2606:4700:3037::ac43:a74e (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo

✍️ DKIM keys#

2 found
SelectorCNAMEKey
k1 — 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#

104ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

47ms
FieldValue
Serial2407612625
Primary NS (MNAME)javier.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-12 16:26:15
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2017-06-26
Expires2027-06-30 (254d)

🔗 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).

DomainRegistrar
dmudd.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
30ms
A
37ms
MX
40ms
AAAA
34ms
TXT
167ms
CAA
44ms
HTTPS
40ms
TLSA
147ms
SOA
47ms
MTA-STS
43ms
DNSSEC
104ms
SRV
67ms
Total
2342ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
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 shown 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
dhd.dk [/] search Domains, Hosts & DNS — .dk zone