koltermann.dk

📜 Historical scan 2026-06-20 19:46:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

koltermann.dk is a .dk domain served by 2 nameservers (ns1.variomedia.de, ns2.variomedia.de). It was registered on 20 July 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.28.228.43 is hosted by ScaleUp Technologies GmbH & Co. KG (AS29014) in Germany. Mail is handled by mail.variomedia.de. 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 310ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.variomedia.de	185.95.96.53 2a00:1c3e:96::53	ns1.variomedia.de ns1.variomedia.de	AS48519 Knipp Medien und Kommunikation GmbH AS48519 Knipp Medien und Kommunikation GmbH
ns2.variomedia.de	185.95.98.53 2a00:1c3e:98::53	ns2.variomedia.de ns2.variomedia.de	AS8561 Knipp Medien und Kommunikation GmbH AS48519 Knipp Medien und Kommunikation GmbH

🌍 A Records#

1 records 302ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
81.28.228.43	3600s	—	AS29014	ScaleUp Technologies GmbH & Co. KG	81.28.224.0/21	🇩🇪 Germany	—

📧 MX Records#

1 records 290ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.variomedia.de	81.28.224.26 81.28.224.27	mx1.mail.vrmd.de mx2.mail.vrmd.de	AS29014 ScaleUp Technologies GmbH & Co. KG AS29014 ScaleUp Technologies GmbH & Co. KG

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔶 Autoconfig	autoconfig.variomedia.de → 81.28.224.75

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 347ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	0	443	autodiscover.variomedia.de

📝 TXT Records#

1 records 579ms

TXT Record
v=spf1 include:spf.variomedia.de ?all

✉️ SPF#

Policy	Record (koltermann.dk)
?all (neutral)	v=spf1 include:spf.variomedia.de ?all

📨 DMARC#

Policy	Record (_dmarc.koltermann.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#

latest probe, not this scan · checked 2026-10-09 21:33:58

www	81.28.228.43 (AS29014) (address records, no CNAME)
www vs bare domain	Same network koltermann.dk: 81.28.228.43 (AS29014) www.koltermann.dk: 81.28.228.43 (AS29014)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ?all

warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

409ms

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

🏷️ SOA#

224ms

Field	Value
Serial	2026061753
Primary NS (MNAME)	ns1.variomedia.de
Responsible (RNAME)	support@variomedia.de
Refresh	28800s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-09 22:06:51

Field	Value
Registrar	Variomedia AG
Registered	2004-07-20
Expires	2027-07-31 (283d)

📋 WHOIS#

⏱️ Lookup Timing#

310ms

302ms

290ms

AAAA

213ms

TXT

579ms

CAA

198ms

HTTPS

299ms

TLSA

253ms

SOA

224ms

MTA-STS

320ms

DNSSEC

409ms

SRV

347ms

Total

1960ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 21:33:58	1835ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-07 17:25:07	555ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-01 04:25:42	728ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-24 15:00:20	1060ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-01 20:41:47	10363ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-10 13:40:21	1462ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-24 06:21:47	770ms	2 NS 1 A 1 MX	❓ Unknown
2026-06-20 19:46:27 shown	1960ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 15:01:18	558ms	2 NS 1 A 1 MX	🔓 Insecure