lærmatematik.dk DNS records

🖥️ Nameservers3 records 49ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.azehosting.net	2a01:4f8:13b:3146::1 94.130.138.185	— ns1.azehosting.net	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns2.azehosting.net	2a01:4f8:c17:5f0a::2 88.99.15.5	ns2.azehosting.net ns2.azehosting.net	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns3.azehosting.net	2a01:4f8:c17:6a6e::2 88.99.39.181	ns3.azehosting.net ns3.azehosting.net	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🌍 A Records1 records 65ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
157.90.67.40	3600s	cp01.azehosting.net	AS24940	Hetzner Online GmbH	157.90.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records1 records 64ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	xn--lrmatematik-98a.dk	157.90.67.40 2a01:4f8:2b02:6d4::2	cp01.azehosting.net cp01.azehosting.net	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)1 records 78ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:2b02:6d4::2	3600s	cp01.azehosting.net	AS24940	Hetzner Online GmbH	2a01:4f8:0:0:0:0:0:0/31	🇩🇪 Germany	Falkenstein

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 314ms

TXT Record
v=spf1 ip4:157.90.67.40 include:spf.azehosting.net ip4:49.12.83.57 +a +mx +ip4:116.202.245.110 +ip4:94.231.104.198 ~all

✉️ SPF

Policy	Record (lærmatematik.dk)
~all (soft fail)	v=spf1 ip4:157.90.67.40 include:spf.azehosting.net ip4:49.12.83.57 +a +mx +ip4:116.202.245.110 +ip4:94.231.104.198 ~all

📨 DMARC

Policy	Record (_dmarc.lærmatematik.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.lærmatematik.dk	fGKVsU30emHciplXRQN6qi1uOxeGfo_Ey9hOWllM1RY

🔗 TLSA / DANE

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

🔐 DNSSEC2092ms

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	2026072201
Primary NS (MNAME)	ns1.azehosting.net
Responsible (RNAME)	server-admin@azehosting.net
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

49ms

A

65ms

MX

64ms

AAAA

78ms

TXT

314ms

CAA

73ms

HTTPS

68ms

TLSA

75ms

SOA

0ms

MTA-STS

101ms

DNSSEC

2092ms

SRV

91ms

Total

2540ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 16:55:15	2540ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-07-23 01:40:14	9838ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-28 17:20:46	1013ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-25 12:16:51	689ms	3 NS 1 A 1 MX	❓ Unknown	View
2026-06-20 19:51:38	342ms	0 NS 0 A 0 MX	🔒 Secure	View
2026-06-20 19:25:25	1002ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 22:23:06	990ms	3 NS 1 A 1 MX	🔒 Secure	View