topmark.dk DNS records

🖥️ Nameservers2 records 36ms

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 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.62	3600s	webcluster2.webpod12-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	topmark-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::8 2a01:111:f403:ca09::1 2a01:111:f403:ca09::8 52.101.68.18 52.101.73.12 52.101.73.15 52.101.73.26	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am9pr04cu00107.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

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24
🔶 Autoconfig	46.30.213.62

🔷 AAAA Records (IPv6)1 records 56ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10a:80f6:4748:7d31:2722	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 Records1 records 175ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (topmark.dk)
-all (hard fail)	v=spf1 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

🔗 TLSA / DANE

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

🔐 DNSSEC80ms

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

🏷️ SOA36ms

Field	Value
Serial	2026071505
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

36ms

A

54ms

MX

45ms

AAAA

56ms

TXT

175ms

CAA

41ms

HTTPS

34ms

TLSA

243ms

SOA

36ms

MTA-STS

56ms

DNSSEC

80ms

SRV

66ms

Total

5230ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-07 10:33:37	5230ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 19:54:56	5642ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 09:03:56	1207ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 10:26:07	800ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 10:54:02	9920ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 23:09:13	7983ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 17:53:14	1274ms	2 NS 1 A 1 MX	🔒 Secure	View