tf.dk DNS records

🖥️ Nameservers2 records 49ms

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 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
116.203.130.255	600s	static.255.130.203.116.clients.your-server.de	AS24940	Hetzner Online GmbH	116.202.0.0/15	🇩🇪 Germany	Nuremberg

📧 MX Records1 records 52ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	tf-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::c 2a01:111:f403:ca09:: 2a01:111:f403:ca09::1 52.101.68.25 52.101.68.29 52.101.68.32 52.101.73.16	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as2pr05cu00100.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 → 40.104.116.40
🔶 Autoconfig	116.203.130.255

🔷 AAAA Records (IPv6)1 records 50ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:1c1a:ec27::1	3600s	—	AS24940	Hetzner Online GmbH	2a01:4f8:0:0:0:0:0:0/31	🇩🇪 Germany	Nuremberg

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 181ms

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

✉️ SPF

Policy	Record (tf.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.tf.dk)
p=reject	v=DMARC1; p=reject; pct=100; rua=mailto:DMARC@tf.dk

📬 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.tf.dk	fH0A1Tr9HxpndVTgMgvbX5JemEb9yf55ewPHN0Qxn1o

🔗 TLSA / DANE

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

🔐 DNSSEC90ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082104
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

49ms

A

51ms

MX

52ms

AAAA

50ms

TXT

181ms

CAA

62ms

HTTPS

59ms

TLSA

361ms

SOA

0ms

MTA-STS

60ms

DNSSEC

90ms

SRV

79ms

Total

1032ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 20:37:53	1032ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-22 15:21:22	1619ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 14:35:20	9483ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 06:43:44	3851ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 01:11:49	1340ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 22:14:31	1614ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-19 13:56:53	1237ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 10:19:11	1319ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 10:40:56	815ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 16:37:32	2199ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 12:53:00	5086ms	2 NS 1 A 1 MX	🔒 Secure	View