holgermadsenas.dk DNS records

🖥️ Nameservers2 records 65ms

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 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.114	43200s	linux22.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	holgermadsenas-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::10 2a01:111:f403:ca04::b 2a01:111:f403:ca38::8 52.101.103.137 52.101.68.15 52.101.68.21 52.101.68.36	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db5pr02cu00104.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 160ms

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

✉️ SPF

Policy	Record (holgermadsenas.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)

🔐 DNSSEC86ms

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

🏷️ SOA0ms

Field	Value
Serial	2026032402
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

65ms

A

45ms

MX

44ms

AAAA

34ms

TXT

160ms

CAA

61ms

HTTPS

37ms

TLSA

597ms

SOA

0ms

MTA-STS

46ms

DNSSEC

86ms

SRV

70ms

Total

1225ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 22:13:52	1225ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 22:20:17	1399ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 20:27:47	1167ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 03:14:49	1153ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 05:35:28	1756ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 13:39:10	3499ms	2 NS 1 A 1 MX	🔒 Secure	View