specialklassen.dk DNS records

🖥️ Nameservers2 records 43ms

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 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.201.240.150	600s	re01.azehosting.net	AS24940	Hetzner Online GmbH	195.201.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	specialklassen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::2 2a01:111:f403:ca04::5 2a01:111:f403:ca09::1 52.101.68.15 52.101.68.32 52.101.68.39 52.101.73.30	mail-dbapr03cu00100.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am7pr05cu00306.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

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56
🔶 Autoconfig	specialklassen.dk → 195.201.240.150

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 68ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records3 records 159ms

TXT Record
769879d46ad9fec8b44b61bd9a7ee8deb7de1ed6
MS=ms44490418
v=spf1 a mx a:specialklassen.dk ip4:157.90.88.242 include:spf.protection.outlook.com ~all

✉️ SPF

Policy	Record (specialklassen.dk)
~all (soft fail)	v=spf1 a mx a:specialklassen.dk ip4:157.90.88.242 include:spf.protection.outlook.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
CNAME	_acme-challenge.specialklassen.dk	specialklassen.dk
TXT	specialklassen.dk	769879d46ad9fec8b44b61bd9a7ee8deb7de1ed6

🔗 TLSA / DANE

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

🔐 DNSSEC75ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080801
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

43ms

A

47ms

MX

41ms

AAAA

42ms

TXT

159ms

CAA

45ms

HTTPS

51ms

TLSA

901ms

SOA

0ms

MTA-STS

72ms

DNSSEC

75ms

SRV

68ms

Total

1837ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-09 07:49:20	1837ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-13 13:29:41	1089ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 03:19:32	2036ms	2 NS 1 A 1 MX	🔒 Secure	View