undervisningsmidler.dk

📜 Historical scan 2026-09-15 05:50:28 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

undervisningsmidler.dk is a .dk domain served by 2 nameservers (cloe.ns.cloudflare.com, terin.ns.cloudflare.com). It was registered on 6 July 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.29.197 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.undervisningsmidler.dk. 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 133ms

Nameserver	IP addresses	PTR	ASN / ISP
cloe.ns.cloudflare.com	108.162.192.86 172.64.32.86 173.245.58.86 2606:4700:50::adf5:3a56 2803:f800:50::6ca2:c056 2a06:98c1:50::ac40:2056	cloe.ns.cloudflare.com cloe.ns.cloudflare.com cloe.ns.cloudflare.com cloe.ns.cloudflare.com cloe.ns.cloudflare.com cloe.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
terin.ns.cloudflare.com	108.162.193.236 172.64.33.236 173.245.59.236 2606:4700:58::adf5:3bec 2803:f800:50::6ca2:c1ec 2a06:98c1:50::ac40:21ec	terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com terin.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 111ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.29.197	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.149.187	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 134ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.undervisningsmidler.dk	—	—	—

🔷 AAAA Records (IPv6)#

2 records 129ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:1dc5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:95bb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 112ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.29.197,172.67.149.187 ech=AEX+DQBBcQAgACAvbknRWk7ylLlUgFoKZ0t0RS5LnLVb4hY2yyI1e34YcAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:1dc5,2606:4700:3035::ac43:95bb

📝 TXT Records#

1 records 279ms

TXT Record
v=spf1 a mx include:_spf.google.com ~all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.undervisningsmidler.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc@zebiza.com

📬 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 02:53:14

www	104.21.29.197 172.67.149.187 2606:4700:3031::6815:1dc5 2606:4700:3035::ac43:95bb (AS13335) (address records, no CNAME)
www vs bare domain	Same network undervisningsmidler.dk: 104.21.29.197 172.67.149.187 2606:4700:3031::6815:1dc5 2606:4700:3035::ac43:95bb (AS13335) www.undervisningsmidler.dk: 104.21.29.197 172.67.149.187 2606:4700:3031::6815:1dc5 2606:4700:3035::ac43:95bb (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	Revoked (empty key)

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: 3/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.undervisningsmidler.dk	rA6OlU4iMwu86xsys8N7ZOk2KITR6XEqapZSq0f1Os8
TXT	_acme-challenge.undervisningsmidler.dk	tkv2Ijgxw6z2c4efhVbakTsr7j_4P-pNmsMCOmrB5-g

🔗 TLSA / DANE#

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

🔐 DNSSEC#

158ms

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	2414776290
Primary NS (MNAME)	cloe.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 15:46:41

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2023-07-06
Expires	2027-07-05 (254d)

📋 WHOIS#

⏱️ Lookup Timing#

133ms

111ms

134ms

AAAA

129ms

TXT

279ms

CAA

118ms

HTTPS

112ms

TLSA

832ms

SOA

0ms

MTA-STS

107ms

DNSSEC

158ms

SRV

141ms

Total

2114ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-19 02:53:14	728ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 19:06:25	662ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 01:50:15	689ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-15 05:50:28 shown	2114ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-20 03:51:59	5982ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-19 20:44:43	8829ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-16 12:38:39	699ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-08 20:18:15	1197ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 22:46:59	2777ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 11:31:09	3541ms	2 NS 2 A 1 MX	🔓 Insecure