mastery.dk DNS records

🖥️ Nameservers4 records 64ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.nordicway.dk	2a01:4f8:1c1a:a1e7::1 91.98.140.195	— static.195.140.98.91.clients.your-server.de	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns2.nordicway.dk	2a01:4f8:c012:4db6::1 49.13.80.249	— static.249.80.13.49.clients.your-server.de	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns3.nordicway.dk	2a01:4f8:c2c:d3c0::1 78.47.45.64	ns3.nordicway.dk ns3.nordicway.dk	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns4.nordicway.dk	2a01:4f8:c010:24a2::1 78.47.56.84	ns4.nordicway.dk ns4.nordicway.dk	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🌍 A Records1 records 79ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
144.76.168.29	3600s	cp15.nordicway.dk	AS24940	Hetzner Online GmbH	144.76.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	mastery.dk	144.76.168.29 2a01:4f8:200:442e::2	cp15.nordicway.dk cp15.nordicway.dk	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)1 records 77ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:200:442e::2	3600s	cp15.nordicway.dk	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 373ms

TXT Record
v=spf1 ip4:144.76.168.29 ip4:176.9.90.24 +a +mx +ip4:49.12.122.94 include:relay.mailchannels.net ~all

✉️ SPF

Policy	Record (mastery.dk)
~all (soft fail)	v=spf1 ip4:144.76.168.29 ip4:176.9.90.24 +a +mx +ip4:49.12.122.94 include:relay.mailchannels.net ~all

📨 DMARC

Policy	Record (_dmarc.mastery.dk)
p=none (monitor only)	v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400

📬 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.mastery.dk	qIDvx3V_XRJQ0J9ny9bq3AykC-L4EOCcNyLEF92jwpU

🔗 TLSA / DANE

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

🔐 DNSSEC9094ms

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	2026090403
Primary NS (MNAME)	ns1.nordicway.dk
Responsible (RNAME)	server@nordicway.dk
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

64ms

A

79ms

MX

44ms

AAAA

77ms

TXT

373ms

CAA

65ms

HTTPS

77ms

TLSA

88ms

SOA

0ms

MTA-STS

136ms

DNSSEC

9094ms

SRV

112ms

Total

9658ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-05 09:04:13	9658ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-09-04 03:02:20	718ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-09-01 02:21:21	1220ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-30 23:22:27	2115ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-29 10:27:49	1398ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-28 03:58:38	9738ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-27 17:19:40	715ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-26 16:56:49	656ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-23 23:52:23	3028ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-22 21:53:39	1214ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-21 21:39:30	9383ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-20 21:29:40	7393ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-19 21:03:00	1125ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-18 20:38:42	3701ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-17 16:00:20	3324ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-16 08:44:54	17219ms	4 NS 1 A 1 MX	❓ Unknown	View
2026-08-14 21:17:49	3209ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-13 15:51:26	2943ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-12 02:10:21	8811ms	4 NS 1 A 1 MX	❓ Unknown	View
2026-08-10 22:59:36	3530ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-08 05:07:33	1143ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-02 22:37:02	8864ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-07-31 18:21:40	8794ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-07-29 18:30:52	2741ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-07-27 08:05:32	1378ms	4 NS 1 A 1 MX	🔓 Insecure	View