koebbremser.dk

📜 Historical scan 2026-09-30 01:38:09 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

koebbremser.dk is a .dk domain served by 2 nameservers (amir.ns.cloudflare.com, dorthy.ns.cloudflare.com). It was registered on 31 March 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.18.38.185 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by smtp2.delti.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 145ms

Nameserver	IP addresses	PTR	ASN / ISP
amir.ns.cloudflare.com	108.162.193.62 172.64.33.62 173.245.59.62 2606:4700:58::adf5:3b3e 2803:f800:50::6ca2:c13e 2a06:98c1:50::ac40:213e	amir.ns.cloudflare.com amir.ns.cloudflare.com amir.ns.cloudflare.com amir.ns.cloudflare.com amir.ns.cloudflare.com amir.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
dorthy.ns.cloudflare.com	108.162.192.249 172.64.32.249 173.245.58.249 2606:4700:50::adf5:3af9 2803:f800:50::6ca2:c0f9 2a06:98c1:50::ac40:20f9	dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 80ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.18.38.185	300s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—
172.64.149.71	300s	—	AS13335	Cloudflare, Inc.	172.64.144.0/20	—	—

📧 MX Records#

1 records 68ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	smtp2.delti.com	2001:67c:568:10::200 91.231.97.49	smtp2.delti.com smtp2.delti.com	AS57533 Delticom Ag AS57533 Delticom Ag

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.64.149.71
🔶 Autoconfig	172.64.149.71

🔷 AAAA Records (IPv6)#

2 records 163ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:4400::ac40:9547	300s	—	AS13335	Cloudflare, Inc.	2606:4700:4400:0:0:0:0:0/44	—	—
2606:4700:4402::6812:26b9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:4400:0:0:0:0:0/44	—	—

🔐 HTTPS Records#

1 records 154ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.18.38.185,172.64.149.71 ipv6hint=2606:4700:4400::ac40:9547,2606:4700:4402::6812:26b9

📝 TXT Records#

1 records 320ms

TXT Record
v=spf1 ip4:91.231.97.0/24 ip6:2001:67c:568::/58 ptr mx -all

✉️ SPF#

Policy	Record (koebbremser.dk)
-all (hard fail)	v=spf1 ip4:91.231.97.0/24 ip6:2001:67c:568::/58 ptr mx -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 2026-10-08 05:53:01

www	104.18.38.185 172.64.149.71 2606:4700:4400::ac40:9547 2606:4700:4402::6812:26b9 (AS13335) (address records, no CNAME)
www vs bare domain	Same network koebbremser.dk: 104.18.38.185 172.64.149.71 2606:4700:4400::ac40:9547 2606:4700:4402::6812:26b9 (AS13335) www.koebbremser.dk: 104.18.38.185 172.64.149.71 2606:4700:4400::ac40:9547 2606:4700:4402::6812:26b9 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

warn "ptr" is slow, unreliable and discouraged (RFC 7208 §5.5)

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.koebbremser.dk	oLrGgcatxoqRJgwnFJ9XUbb3yzCWJPE3GOqLWnYnyQ0
TXT	_acme-challenge.koebbremser.dk	Ua7H00mE-Av-C-pGz8IiqrgEHMmmhni2paxyvGdSqzY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

255ms

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

🏷️ SOA#

64ms

Field	Value
Serial	2416197765
Primary NS (MNAME)	amir.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-07 04:41:12

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2017-03-31
Expires	2027-03-31 (164d)

📋 WHOIS#

⏱️ Lookup Timing#

145ms

80ms

68ms

AAAA

163ms

TXT

320ms

CAA

82ms

HTTPS

154ms

TLSA

396ms

SOA

64ms

MTA-STS

134ms

DNSSEC

255ms

SRV

211ms

Total

2178ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 05:48:24	2354ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-03 03:19:05	997ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 03:09:25	812ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 01:42:58	674ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 01:38:09 shown	2178ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 00:24:49	1821ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 23:29:48	1135ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-16 22:29:19	1145ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-13 03:09:41	2202ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-08 15:23:51	2988ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-31 10:39:17	2067ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-30 01:55:39	1960ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 15:07:19	1028ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 14:30:25	878ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-23 23:55:35	6976ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-06 15:15:07	1449ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-17 16:09:53	1164ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-28 01:53:00	2645ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 03:52:54	946ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 14:24:17	1438ms	2 NS 2 A 1 MX	🔓 Insecure