jakobsson.dk

📜 Historical scan 2026-08-27 01:55:57 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jakobsson.dk is a .dk domain served by 2 nameservers (meadow.ns.cloudflare.com, thaddeus.ns.cloudflare.com). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by jakobsson-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 55ms

Nameserver	IP addresses	PTR	ASN / ISP
meadow.ns.cloudflare.com	108.162.194.51 162.159.38.51 172.64.34.51 2606:4700:50::a29f:2633 2803:f800:50::6ca2:c233 2a06:98c1:50::ac40:2233	meadow.ns.cloudflare.com meadow.ns.cloudflare.com meadow.ns.cloudflare.com meadow.ns.cloudflare.com meadow.ns.cloudflare.com meadow.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
thaddeus.ns.cloudflare.com	108.162.195.127 162.159.44.127 172.64.35.127 2606:4700:58::a29f:2c7f 2803:f800:50::6ca2:c37f 2a06:98c1:50::ac40:237f	thaddeus.ns.cloudflare.com thaddeus.ns.cloudflare.com thaddeus.ns.cloudflare.com thaddeus.ns.cloudflare.com thaddeus.ns.cloudflare.com thaddeus.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	jakobsson-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::6 2a01:111:f403:ca04::f 2a01:111:f403:ca09::e 52.101.209.153 52.101.68.16 52.101.68.3 52.101.68.32	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-db3pr0202cu00200.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	172.67.179.141

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 102ms

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

📝 TXT Records#

3 records 294ms

TXT Record
MS=ms41896641
v=spf1 include:spf.protection.outlook.com -all
X6X25RjDMhKgKggvHYDgX9BEX1SS/k2RoQqQt8FqydovfYhEXv6nDXdxp3iDDojODNyZTvYtNQ0KLmFxNrCzCQ==

✉️ SPF#

Policy	Record (jakobsson.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-21 09:01:05

www	NXDOMAIN
www vs bare domain	Neither resolves jakobsson.dk: no address www.jakobsson.dk: no address
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2064ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2411992857
Primary NS (MNAME)	meadow.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 09:24:12

Field	Value
Registrar	CSC Digital Brand Service, Inc
Registered	1997-01-31
Expires	2027-03-31 (158d)

📋 WHOIS#

⏱️ Lookup Timing#

55ms

45ms

37ms

AAAA

72ms

TXT

294ms

CAA

82ms

HTTPS

47ms

TLSA

647ms

SOA

0ms

MTA-STS

85ms

DNSSEC

2064ms

SRV

102ms

Total

3292ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 09:01:05	1685ms	2 NS 0 A 1 MX	🔓 Insecure
2026-10-11 08:41:10	2282ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-27 00:01:12	1288ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-27 01:55:57 shown	3292ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-13 13:30:37	1344ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-01 17:18:22	1170ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-25 03:11:53	1182ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-21 06:50:12	1001ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-21 04:52:26	1167ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 07:37:39	14013ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-18 07:23:46	26119ms	2 NS 0 A 1 MX	🔓 Insecure