mesterskud.dk DNS records

🖥️ Nameservers2 records 106ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 82ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.141	3600s	webcluster1.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records6 records 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	mesterskud-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::1 2a01:111:f403:ca04::4 2a01:111:f403:ca04::7 52.101.68.21 52.101.68.25 52.101.68.32 52.101.73.26	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db7pr03cu00401.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation
1	3600s	aspmx.l.google.com	142.251.127.27 2a00:1450:4001:c21::1b	lcfrai-in-f27.1e100.net lcfrai-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	142.250.147.26 2a00:1450:4025:c01::1a	rd-in-f26.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	172.253.152.26 2a00:1450:4010:c22::1a	yulpptr-in-f26.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1b	lcbomp-in-f27.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40

🔷 AAAA Records (IPv6)1 records 103ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10c:68:5ea:2f6a:d9a5	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records4 records 271ms

TXT Record
google-site-verification=EQsjoTDzv9GAXKP-ZxM7cOoZw1VOnIrA7AFTrA0BMSc
ji6oqb3c502h5q64u58tb04pab
MS=ms88233803
v=spf1 a mx ip4:77.66.20.107 ip4:159.122.30.222 ip4:159.122.30.197 ip4:159.122.30.196 ip4:46.30.212.189 mx:mesterskud-dk.mail.protection.outlook.com include:mail.zendesk.com include:spf.protection.outlook.com include:_custspf.one.com include:spf.mandrillapp.com -all

✉️ SPF

Policy	Record (mesterskud.dk)
-all (hard fail)	v=spf1 a mx ip4:77.66.20.107 ip4:159.122.30.222 ip4:159.122.30.197 ip4:159.122.30.196 ip4:46.30.212.189 mx:mesterskud-dk.mail.protection.outlook.com include:mail.zendesk.com include:spf.protection.outlook.com include:_custspf.one.com include:spf.mandrillapp.com -all

📨 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.mesterskud.dk	1cyJoA6vwXsmbGeKwmdeijgeotnpH0DWd7B82zupMP4
TXT	_acme-challenge.mesterskud.dk	NP9jQbknOMzkrHWUWdzZwQQagbdGhHMok6_p-Z9oSXs

🔗 TLSA / DANE

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

🔐 DNSSEC213ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2026082901
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

106ms

A

82ms

MX

80ms

AAAA

103ms

TXT

271ms

CAA

91ms

HTTPS

83ms

TLSA

745ms

SOA

0ms

MTA-STS

146ms

DNSSEC

213ms

SRV

129ms

Total

2007ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 19:16:52	2007ms	2 NS 1 A 6 MX	🔒 Secure	View
2026-08-24 16:50:29	1111ms	2 NS 1 A 6 MX	🔒 Secure	View
2026-08-20 10:09:45	5979ms	2 NS 1 A 6 MX	🔒 Secure	View
2026-07-26 06:20:51	9936ms	2 NS 1 A 6 MX	🔒 Secure	View
2026-07-25 05:52:55	3515ms	2 NS 1 A 6 MX	🔒 Secure	View
2026-07-03 01:00:18	9880ms	2 NS 1 A 6 MX	🔒 Secure	View
2026-06-22 22:25:21	1284ms	2 NS 1 A 6 MX	🔒 Secure	View
2026-06-22 14:07:05	902ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 00:13:36	1198ms	2 NS 1 A 6 MX	🔒 Secure	View