holberg-marketing.dk DNS records

🖥️ Nameservers2 records 174ms

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 111ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.99	3600s	webcluster2.webpod13-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 129ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	holbergmarketing-dk01i.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::9 2a01:111:f403:ca09:: 2a01:111:f403:ca3c::a 52.101.185.114 52.101.73.1 52.101.73.145 52.101.73.8	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-zrxpr07cu00102.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-am0pr04cu00500.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)1 records 114ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:801b:7095:7983:c1b4	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 Records2 records 278ms

TXT Record
MS=ms87737732
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (holberg-marketing.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)

🔐 DNSSEC211ms

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

🏷️ SOA0ms

Field	Value
Serial	2026083002
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

174ms

A

111ms

MX

129ms

AAAA

114ms

TXT

278ms

CAA

101ms

HTTPS

100ms

TLSA

731ms

SOA

0ms

MTA-STS

148ms

DNSSEC

211ms

SRV

131ms

Total

1733ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-03 13:45:17	1733ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-28 13:33:10	1212ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 12:43:36	1857ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-31 00:37:15	1251ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-12 23:58:15	5351ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 15:18:11	1143ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 00:34:11	2240ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 01:26:27	3714ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 13:13:05	273ms	0 NS 0 A 0 MX	❓ Unknown	View