fredholm.dk

📜 Historical scan 2026-06-17 10:24:08 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fredholm.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 30 September 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.163 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod14-cph3.one.com, mx2.pub.mailpod14-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, publishes a 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 32ms

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 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.163	—	webcluster2.webpod17-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

4 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.pub.mailpod14-cph3.one.com	185.10.9.212	mx1.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	—	mx2.pub.mailpod14-cph3.one.com	185.10.9.213	mx2.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	—	mx3.pub.mailpod14-cph3.one.com	185.10.9.214	mx3.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	—	mx4.pub.mailpod14-cph3.one.com	185.10.9.215	mx4.pub.mailpod14-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

1 records 30ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:106:801b:fd1b:d4c1:423b	—	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 141ms

TXT Record
v=spf1 a mx include:_custspf.one.com ~all

✉️ SPF#

Policy	Record (fredholm.dk)
~all (soft fail)	v=spf1 a mx include:_custspf.one.com ~all

📨 DMARC#

Policy	Record (_dmarc.fredholm.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc-reports@fredholm.dk

📬 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 2026-10-20 04:08:25

www	46.30.215.178 2a02:2350:5:106:8093:c588:be02:e33b (AS51468) (address records, no CNAME)
www vs bare domain	Same network fredholm.dk: 46.30.215.178 2a02:2350:5:106:8093:c588:be02:e33b (AS51468) www.fredholm.dk: 46.30.215.178 2a02:2350:5:106:8093:c588:be02:e33b (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records 313ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	F9CAE2DF0FCB54F04130769823BED77A…
SMTP _25._tcp.mx2.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	F9CAE2DF0FCB54F04130769823BED77A…
SMTP _25._tcp.mx3.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	F9CAE2DF0FCB54F04130769823BED77A…
SMTP _25._tcp.mx4.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	F9CAE2DF0FCB54F04130769823BED77A…

🔐 DNSSEC#

94ms

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

🏷️ SOA#

27ms

Field	Value
Serial	2026061505
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 2026-10-19 14:43:44

Field	Value
Registrar	ONE.COM A/S
Registered	1997-09-30
Expires	2029-09-30 (1075d)

🔗 Same registrant#

4 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
adisk.dk	ONE.COM A/S
blavnsfeldt.dk	ONE.COM A/S
dansk-ejerkapital.dk	ONE.COM A/S
danskejerkapital.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

32ms

44ms

30ms

AAAA

30ms

TXT

141ms

CAA

28ms

HTTPS

27ms

TLSA

313ms

SOA

27ms

MTA-STS

275ms

DNSSEC

94ms

SRV

0ms

Total

1169ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-20 04:08:25	779ms	2 NS 1 A 4 MX	🔒 Secure
2026-10-15 01:49:06	884ms	2 NS 1 A 4 MX	🔒 Secure
2026-10-13 23:23:41	1237ms	2 NS 1 A 4 MX	🔒 Secure
2026-10-02 11:24:45	415ms	2 NS 1 A 4 MX	🔒 Secure
2026-09-21 22:16:23	4627ms	2 NS 1 A 4 MX	🔒 Secure
2026-09-17 20:17:21	805ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-27 09:05:48	734ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-18 22:42:01	4661ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-16 03:19:41	5041ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-06 07:21:07	1040ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-24 09:41:40	4901ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-19 09:05:00	8756ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-14 13:01:52	884ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-17 10:34:50	916ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-17 10:24:08 shown	1169ms	2 NS 1 A 4 MX	🔒 Secure