lærprogrammering.dk xn--lrprogrammering-xlb.dk

📜 Historical scan 2026-06-20 17:14:28 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

lærprogrammering.dk is a .dk domain served by 2 nameservers (christian.ns.cloudflare.com, paislee.ns.cloudflare.com). It was registered on 2 August 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.80.201 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod12-cph3.one.com, mx2.pub.mailpod12-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, has no 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 96ms

Nameserver	IP addresses	PTR	ASN / ISP
christian.ns.cloudflare.com	108.162.195.247 162.159.44.247 172.64.35.247 2606:4700:58::a29f:2cf7 2803:f800:50::6ca2:c3f7 2a06:98c1:50::ac40:23f7	christian.ns.cloudflare.com christian.ns.cloudflare.com christian.ns.cloudflare.com christian.ns.cloudflare.com christian.ns.cloudflare.com christian.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
paislee.ns.cloudflare.com	108.162.194.183 162.159.38.183 172.64.34.183 2606:4700:50::a29f:26b7 2803:f800:50::6ca2:c2b7 2a06:98c1:50::ac40:22b7	paislee.ns.cloudflare.com paislee.ns.cloudflare.com paislee.ns.cloudflare.com paislee.ns.cloudflare.com paislee.ns.cloudflare.com paislee.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 96ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.80.201	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.153.142	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

4 records 99ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.pub.mailpod12-cph3.one.com	104.37.34.246	mx1.pub.mailpod12-cph3.one.com	AS51468 One.com A/S
10	300s	mx2.pub.mailpod12-cph3.one.com	104.37.34.247	mx2.pub.mailpod12-cph3.one.com	AS51468 One.com A/S
10	300s	mx3.pub.mailpod12-cph3.one.com	104.37.34.248	mx3.pub.mailpod12-cph3.one.com	AS51468 One.com A/S
10	300s	mx4.pub.mailpod12-cph3.one.com	104.37.34.249	mx4.pub.mailpod12-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

2 records 97ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:50c9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:998e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 111ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.80.201,172.67.153.142 ech=AEX+DQBB/gAgACBIVulMEx7OVziL8f6Guob9W5ShrfTsiK0KKx+rZQwZKgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:50c9,2606:4700:3037::ac43:998e

📝 TXT Records#

1 records 361ms

TXT Record
google-site-verification=UsTq_89YYFV2uSKRuPCb_oLhhPGpTLlt80_PPJi-4ks

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 20:42:55

www	104.21.80.201 172.67.153.142 2606:4700:3031::6815:50c9 2606:4700:3035::ac43:998e (AS13335) (address records, no CNAME)
www vs bare domain	Same network lærprogrammering.dk: 104.21.80.201 172.67.153.142 2606:4700:3031::6815:50c9 2606:4700:3035::ac43:998e (AS13335) www.lærprogrammering.dk: 104.21.80.201 172.67.153.142 2606:4700:3031::6815:50c9 2606:4700:3035::ac43:998e (AS13335)
Wildcard	No

🔗 TLSA / DANE#

4 records 164ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	D91CB8AC124CB360F986182813BDF3FD…
SMTP _25._tcp.mx2.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	D91CB8AC124CB360F986182813BDF3FD…
SMTP _25._tcp.mx3.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	D91CB8AC124CB360F986182813BDF3FD…
SMTP _25._tcp.mx4.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	D91CB8AC124CB360F986182813BDF3FD…

🔐 DNSSEC#

231ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxdomain

🏷️ SOA#

97ms

Field	Value
Serial	2406622471
Primary NS (MNAME)	christian.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 16:57:13

Field	Value
Registrar	ONE.COM A/S
Registered	2024-08-02
Expires	2027-08-01 (280d)

📋 WHOIS#

⏱️ Lookup Timing#

96ms

99ms

AAAA

97ms

TXT

361ms

CAA

94ms

HTTPS

111ms

TLSA

164ms

SOA

97ms

MTA-STS

74ms

DNSSEC

231ms

SRV

125ms

Total

1296ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-06 16:42:22	556ms	2 NS 2 A 4 MX	🔓 Insecure
2026-10-05 16:10:46	518ms	2 NS 2 A 4 MX	🔓 Insecure
2026-09-24 14:40:05	807ms	2 NS 2 A 4 MX	🔓 Insecure
2026-09-23 15:54:11	826ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-27 10:07:14	2219ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-26 16:38:06	797ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-25 04:35:45	850ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-07 20:00:12	1265ms	2 NS 2 A 4 MX	🔓 Insecure
2026-07-19 20:35:45	9296ms	2 NS 2 A 4 MX	❓ Unknown
2026-06-20 17:14:28 shown	1296ms	2 NS 2 A 4 MX	🔒 Secure
2026-06-17 23:02:23	291ms	0 NS 0 A 0 MX	🔒 Secure