musikundervisning.dk

📜 Historical scan 2026-09-26 00:35:49 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

musikundervisning.dk is a .dk domain served by 2 nameservers (amit.ns.cloudflare.com, kay.ns.cloudflare.com). It was registered on 19 March 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.26.12.184 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com. 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 33ms

Nameserver	IP addresses	PTR	ASN / ISP
amit.ns.cloudflare.com	108.162.193.63 172.64.33.63 173.245.59.63 2606:4700:58::adf5:3b3f 2803:f800:50::6ca2:c13f 2a06:98c1:50::ac40:213f	amit.ns.cloudflare.com amit.ns.cloudflare.com amit.ns.cloudflare.com amit.ns.cloudflare.com amit.ns.cloudflare.com amit.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kay.ns.cloudflare.com	108.162.192.125 172.64.32.125 173.245.58.125 2606:4700:50::adf5:3a7d 2803:f800:50::6ca2:c07d 2a06:98c1:50::ac40:207d	kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

3 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.26.12.184	300s	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
104.26.13.184	300s	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
172.67.68.193	300s	—	AS13335	Cloudflare, Inc.	172.67.64.0/18	—	—

📧 MX Records#

1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	108.177.14.26 2a00:1450:4010:c1c::1b	lt-in-f26.1e100.net la-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	139.59.147.137
🔶 Autoconfig	139.59.147.137

🔷 AAAA Records (IPv6)#

3 records 43ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:20::681a:cb8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:20::681a:db8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:20::ac43:44c1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—

🔐 HTTPS Records#

1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.26.12.184,104.26.13.184,172.67.68.193 ipv6hint=2606:4700:20::681a:cb8,2606:4700:20::681a:db8,2606:4700:20::ac43:44c1

📝 TXT Records#

4 records 197ms

TXT Record
facebook-domain-verification=9pvn6201filj70en3qizq0tr18kwi7
google-site-verification=9R4DPYZ7eWUTJgDDAefg09MLDyD2baT7Z3I9e7x8HWE
MS=3EEBC8E4084B11BAC78E8F78FCD5D7DA4D36A257
v=spf1 a mx include:spf.mtasv.net include:_spf.google.com ~all

✉️ SPF#

Policy	Record (musikundervisning.dk)
~all (soft fail)	v=spf1 a mx include:spf.mtasv.net include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.musikundervisning.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dev@moremusic.io; ruf=mailto:dev@moremusic.io;

📬 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 2026-10-18 04:59:44

www	104.26.12.184 104.26.13.184 172.67.68.193 2606:4700:20::681a:cb8 2606:4700:20::681a:db8 2606:4700:20::ac43:44c1 (AS13335) (address records, no CNAME)
www vs bare domain	Same network musikundervisning.dk: 104.26.12.184 104.26.13.184 172.67.68.193 2606:4700:20::681a:cb8 (AS13335) www.musikundervisning.dk: 104.26.12.184 104.26.13.184 172.67.68.193 2606:4700:20::681a:cb8 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
k1	dkim.mcsv.net	RSA · ~1024 bit below 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: 4/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

72ms

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	2414274535
Primary NS (MNAME)	amit.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-15 06:28:07

Field	Value
Registrar	Simply.com A/S
Registered	1999-03-19
Expires	2036-03-31 (3442d)

🔗 Same registrant#

2 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
musiklærer.dk	Simply.com A/S
musikskoleundervisning.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

33ms

41ms

31ms

AAAA

43ms

TXT

197ms

CAA

49ms

HTTPS

37ms

TLSA

84ms

SOA

0ms

MTA-STS

51ms

DNSSEC

72ms

SRV

65ms

Total

624ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 04:59:44	2363ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-30 01:15:08	548ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-26 00:35:49 shown	624ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-08 10:06:47	1355ms	2 NS 3 A 1 MX	🔓 Insecure
2026-08-20 15:14:08	6776ms	2 NS 3 A 1 MX	🔓 Insecure
2026-06-23 23:20:42	1126ms	2 NS 3 A 1 MX	🔓 Insecure
2026-06-23 12:24:10	1186ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 06:09:49	1119ms	2 NS 2 A 1 MX	🔓 Insecure