lærprogrammering.dk DNS records

🖥️ Nameservers2 records 86ms

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 Records2 records 68ms

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 Records4 records 72ms

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 107ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:50c9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:998e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 101ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.80.201,172.67.153.142 ech=AEX+DQBBfAAgACBhkKfZrq8VdKvHn+TBYTJAvQR6/B0psmqgGa/fFeAqawAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:50c9,2606:4700:3035::ac43:998e

📝 TXT Records1 records 375ms

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

🔗 TLSA / DANE4 records 119ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	3E81C76D10E1A717F28178710EADCAA8…
SMTP _25._tcp.mx2.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	3E81C76D10E1A717F28178710EADCAA8…
SMTP _25._tcp.mx3.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	3E81C76D10E1A717F28178710EADCAA8…
SMTP _25._tcp.mx4.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	3E81C76D10E1A717F28178710EADCAA8…

🔐 DNSSEC149ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2411584691
Primary NS (MNAME)	christian.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

86ms

A

68ms

MX

72ms

AAAA

107ms

TXT

375ms

CAA

76ms

HTTPS

101ms

TLSA

119ms

SOA

0ms

MTA-STS

139ms

DNSSEC

149ms

SRV

119ms

Total

2219ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 10:07:14	2219ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-08-26 16:38:06	797ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-08-25 04:35:45	850ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-08-07 20:00:12	1265ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-07-19 20:35:45	9296ms	2 NS 2 A 4 MX	❓ Unknown	View
2026-06-20 17:14:28	1296ms	2 NS 2 A 4 MX	🔒 Secure	View
2026-06-17 23:02:23	291ms	0 NS 0 A 0 MX	🔒 Secure	View