jahnsen.dk

Records from scan: 2026-10-09 12:26:43 · 1204ms total · last checked 2026-10-19 02:08 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jahnsen.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 24 August 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.32.65.61 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by jahnsen-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 57ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.32.65.61	3600s	nt-server3.resennet.dk	AS3292	TDC Holding A/S	193.32.65.0/24	🇩🇰 Denmark	—

📧 MX Records#

1 records 55ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	jahnsen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca09::20 2a01:111:f403:ca09::26 2a01:111:f403:ca21::a 52.101.103.36 52.101.68.10 52.101.68.12 52.101.73.120	mail-du0pr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am7pr02cu00300.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

🔌 SRV Records#

1 records 68ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

1 records 135ms

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

✉️ SPF#

Policy	Record (jahnsen.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.jahnsen.dk)
p=none (monitor only)	v=DMARC1; p=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#

checked 2026-10-09 12:26:43

www	NXDOMAIN
www vs bare domain	www does not resolve jahnsen.dk: 193.32.65.61 (AS3292) www.jahnsen.dk: no address (all like this)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-jahnsen-dk._domainkey.jahnsendk.e-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-jahnsen-dk._domainkey.jahnsendk.e-v1.dkim.mail.microsoft	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 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#

146ms

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

🏷️ SOA#

32ms

Field	Value
Serial	2026091401
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-18 16:53:45

Field	Value
Registrar	DANDOMAIN A/S
Registered	2011-08-24
Expires	2027-08-31 (316d)

🔗 Same registrant#

2 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
astonvilla.dk	DANDOMAIN A/S
nordsjaellandit.dk	DANDOMAIN A/S

📋 WHOIS#

⏱️ Lookup Timing#

57ms

56ms

55ms

AAAA

43ms

TXT

135ms

CAA

34ms

HTTPS

48ms

TLSA

489ms

SOA

32ms

MTA-STS

68ms

DNSSEC

146ms

SRV

68ms

Total

1204ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 12:26:43 shown	1204ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 04:13:36	1155ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-16 11:06:40	1993ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-09 09:39:23	751ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 16:20:58	788ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-24 01:16:16	1025ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-23 15:49:20	985ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 19:35:45	3220ms	2 NS 1 A 3 MX	🔒 Secure