clarus.dk DNS records

🖥️ Nameservers2 records 42ms

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 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
167.235.254.60	600s	static.60.254.235.167.clients.your-server.de	AS24940	Hetzner Online GmbH	167.235.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records1 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	clarus-dk.mail.protection.outlook.com	2a01:111:f403:ca04::c 2a01:111:f403:ca04::e 2a01:111:f403:ca09::5 2a01:111:f403:ca09::c 52.101.103.143 52.101.68.16 52.101.68.21 52.101.68.39	mail-db9pr02cu00204.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00607.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 → 40.104.116.8
🔶 Autoconfig	46.30.215.115

🔷 AAAA Records (IPv6)1 records 51ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:c015:d94::1	3600s	—	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

🔌 SRV Records1 records 75ms

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

📝 TXT Records4 records 199ms

TXT Record
dropbox-domain-verification=19u4lgswv4oe
MS=ms21515853
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:mailgun.org -all
v=spf1 ip4:10.3.3.238 include:spf.protection.outlook.com ~all

✉️ SPF

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (clarus.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:mailgun.org -all
~all (soft fail)	v=spf1 ip4:10.3.3.238 include:spf.protection.outlook.com ~all

📨 DMARC

Policy	Record (_dmarc.clarus.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:yrcdl6js@ag.dmarcian.com; ruf=mailto:yrcdl6js@fr.dmarcian.com; sp=reject; aspf=s; adkim=s; 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.clarus.dk	_Vz1S_Ng5NYenKRxoWi1Y1svbFzy75i8QFdENCF4s8Q

🔗 TLSA / DANE

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

🔐 DNSSEC79ms

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

🏷️ SOA46ms

Field	Value
Serial	2026080305
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

42ms

A

56ms

MX

46ms

AAAA

51ms

TXT

199ms

CAA

40ms

HTTPS

63ms

TLSA

315ms

SOA

46ms

MTA-STS

48ms

DNSSEC

79ms

SRV

75ms

Total

5382ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-23 01:06:16	5382ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-11 12:20:35	5787ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-05 20:13:14	1548ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 12:35:53	3028ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 02:22:18	1213ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 21:23:57	1158ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-23 15:30:42	1176ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 16:12:50	1018ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 22:56:21	1177ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 16:05:00	2784ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:05:55	739ms	2 NS 1 A 1 MX	🔒 Secure	View