biberkopf.dk

📜 Historical scan 2026-09-23 03:02:32 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

biberkopf.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 28 December 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 157.90.67.40 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, 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 30ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
157.90.67.40	900s	cp01.azehosting.net	AS24940	Hetzner Online GmbH	157.90.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

5 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	43200s	aspmx.l.google.com	108.177.14.26 2a00:1450:4010:c01::1a 2a00:1450:4010:c01::1a	lt-in-f26.1e100.net lh-in-x1a.1e100.net lh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	43200s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	43200s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	43200s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	43200s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1b	tp-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	biberkopf.dk → 157.90.67.40
🔶 Autoconfig	biberkopf.dk → 157.90.67.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 164ms

TXT Record
v=spf1 +a include:_spf.google.com ~all

✉️ SPF#

Policy	Record (biberkopf.dk)
~all (soft fail)	v=spf1 +a include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.biberkopf.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 2026-10-18 09:44:59

www CNAME	biberkopf.dk (all on biberkopf.dk) → 157.90.67.40 (AS24940)
www vs bare domain	Same network biberkopf.dk: 157.90.67.40 (AS24940) www.biberkopf.dk: 157.90.67.40 (AS24940)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

3 found

Selector	CNAME	Key
google	—	RSA · ~2048 bit
s1	s1.domainkey.u46696173.wl174.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u46696173.wl174.sendgrid.net	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: 2/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.biberkopf.dk	biberkopf.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

66ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026092001
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-18 09:57:35

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-12-28
Expires	2031-05-31 (1683d)

🔗 Same registrant#

12 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
aarhus-raadhus.dk	Punktum dk A/S (direct)
bagerbroed.dk	Punktum dk A/S (direct)
bizart.dk	Punktum dk A/S (direct)
kodeks.dk	Punktum dk A/S (direct)
mizu.dk	Punktum dk A/S (direct)
mizupapirøen.dk	Punktum dk A/S (direct)
morgenbord.dk	Punktum dk A/S (direct)
morgenbrod.dk	Punktum dk A/S (direct)
onsen-papirøen.dk	Punktum dk A/S (direct)
onsen.dk	Punktum dk A/S (direct)
vandkulturhusetpapiroen.dk	Punktum dk A/S (direct)
vandkulturhusetpapirøen.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

43ms

33ms

AAAA

42ms

TXT

164ms

CAA

52ms

HTTPS

47ms

TLSA

97ms

SOA

0ms

MTA-STS

49ms

DNSSEC

66ms

SRV

56ms

Total

765ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 09:44:59	1758ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-29 14:47:26	1626ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-25 23:17:18	922ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-23 03:02:32 shown	765ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-17 16:21:44	1073ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-16 22:25:18	2603ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-11 11:58:20	3697ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-21 10:22:31	3300ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-20 21:56:17	1162ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 14:28:59	621ms	2 NS 1 A 5 MX	🔒 Secure