jacobmadsen.dk

📜 Historical scan 2026-06-19 22:57:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jacobmadsen.dk is a .dk domain served by 2 nameservers (dns-c.duelhost.dk, dns-d.duelhost.dk). It was registered on 18 April 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 142.132.130.246 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by jacobmadsen-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 77ms

Nameserver	IP addresses	PTR	ASN / ISP
dns-c.duelhost.dk	142.132.130.246	cde2.duelhost.dk	AS24940 Hetzner Online GmbH
dns-d.duelhost.dk	195.201.247.4	dns-d.duelhost.dk	AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 93ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
142.132.130.246	3600s	cde2.duelhost.dk	AS24940	Hetzner Online GmbH	142.132.128.0/17	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 81ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	jacobmadsen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::4 2a01:111:f403:ca09::9 2a01:111:f403:ca09::c 52.101.68.10 52.101.68.32 52.101.73.22 52.101.73.8	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am7pr05cu00106.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)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 166ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	1	100	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 470ms

TXT Record
google-site-verification=B8dgSqC8IhmnnrvBvpdJbxj68MD4D_pYjUryjys2Msg
v=spf1 a mx include:relay.mailchannels.net include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (jacobmadsen.dk)
-all (hard fail)	v=spf1 a mx include:relay.mailchannels.net include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.jacobmadsen.dk)
p=none (monitor only)	v=DMARC1; p=none; sp=none

📬 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-07 17:53:43

www	93.191.158.49 (AS48854) (address records, no CNAME)
www vs bare domain	Same network jacobmadsen.dk: 93.191.158.49 (AS48854) www.jacobmadsen.dk: 93.191.158.49 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

169ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

97ms

Field	Value
Serial	2026041203
Primary NS (MNAME)	dns-c.duelhost.dk
Responsible (RNAME)	hostmaster@jacobmadsen.dk
Refresh	3600s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-10 18:04:57

Field	Value
Registrar	DANDOMAIN A/S
Registered	2023-04-18
Expires	2027-04-17 (177d)

📋 WHOIS#

⏱️ Lookup Timing#

77ms

93ms

81ms

AAAA

100ms

TXT

470ms

CAA

77ms

HTTPS

80ms

TLSA

4021ms

SOA

97ms

MTA-STS

271ms

DNSSEC

169ms

SRV

166ms

Total

4827ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 14:24:44	1066ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 23:53:43	878ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-20 02:40:44	1202ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-03 13:08:43	1638ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-31 20:20:09	1162ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 16:51:05	692ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-26 06:37:37	788ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-21 15:26:50	845ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 12:39:48	1269ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-19 22:57:20 shown	4827ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:22:26	1002ms	2 NS 1 A 1 MX	🔓 Insecure