jacobsen-holding.dk DNS records

🖥️ Nameservers2 records 46ms

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 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.11	600s	linux112.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	jacobsenholding-dk02b.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::e 2a01:111:f403:ca09::1 2a01:111:f403:ca09::28 52.101.209.153 52.101.68.39 52.101.68.5 52.101.73.16	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-du2pr03cu00105.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 209ms

TXT Record
MS=ms15103016
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (jacobsen-holding.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)

🔐 DNSSEC101ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082005
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

46ms

A

42ms

MX

40ms

AAAA

51ms

TXT

209ms

CAA

51ms

HTTPS

48ms

TLSA

652ms

SOA

0ms

MTA-STS

86ms

DNSSEC

101ms

SRV

84ms

Total

1310ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 18:32:21	1310ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 11:55:41	1931ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-12 17:18:16	1129ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-31 06:57:17	16858ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 13:16:35	5646ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 12:49:09	1602ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 14:43:51	985ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 02:39:53	1731ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 22:02:23	3760ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 03:30:36	2817ms	2 NS 1 A 1 MX	🔒 Secure	View