holm-larsen.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 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
18.134.66.168	43200s	ec2-18-134-66-168.eu-west-2.compute.amazonaws.com	AS16509	Amazon.com, Inc.	18.128.0.0/12	🇬🇧 United Kingdom	City of London

📧 MX Records1 records 48ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	holmlarsen-dk01b.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::6 2a01:111:f403:ca09::7 2a01:111:f403:ca09::9 52.101.103.137 52.101.68.39 52.101.68.5 52.101.73.145	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am6pr02cu00301.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	holm-larsen.dk → 18.134.66.168

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 166ms

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

✉️ SPF

Policy	Record (holm-larsen.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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.holm-larsen.dk	holm-larsen.dk

🔗 TLSA / DANE

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

🔐 DNSSEC76ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081101
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

49ms

MX

48ms

AAAA

40ms

TXT

166ms

CAA

38ms

HTTPS

37ms

TLSA

190ms

SOA

0ms

MTA-STS

52ms

DNSSEC

76ms

SRV

72ms

Total

833ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-03 22:16:44	833ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-17 04:38:47	5330ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-12 10:02:41	3653ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 16:18:55	9623ms	2 NS 1 A 0 MX	🔒 Secure	View
2026-07-14 12:42:52	1205ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 05:36:03	4520ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 15:44:12	1135ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 01:10:12	758ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 11:57:26	1412ms	2 NS 1 A 1 MX	🔒 Secure	View