fredholm.dk

📜 Historical scan 2026-10-13 23:23:41  ·  ← 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 46.30.215.178 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.mailpod16-cph3.g1i.one.com, mx2.mailpod16-cph3.g1i.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   92ms
NameserverIP addressesPTRASN / 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   90ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.215.178 3600s webcluster2.webpod17-cph3.one.com AS51468 One.com A/S 46.30.208.0/21 🇩🇰 Denmark Copenhagen

📧 MX Records#

4 records   92ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.mailpod16-cph3.g1i.one.com 5.249.232.33 mx1.mailpod16-cph3.g1i.one.com AS51468 One.com A/S
10 10800s mx2.mailpod16-cph3.g1i.one.com 5.249.232.34 mx2.mailpod16-cph3.g1i.one.com AS51468 One.com A/S
10 10800s mx3.mailpod16-cph3.g1i.one.com 5.249.232.35 mx3.mailpod16-cph3.g1i.one.com AS51468 One.com A/S
10 10800s mx4.mailpod16-cph3.g1i.one.com 5.249.232.36 mx4.mailpod16-cph3.g1i.one.com AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

1 records   63ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2350:5:106:8093:c588:be02:e33b 3600s — 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   270ms
TXT Record
v=spf1 a mx include:_custspf.one.com ~all

✉️ SPF#

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

📨 DMARC#

PolicyRecord (_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 2026-10-21 14:19:57
www46.30.215.178 2a02:2350:5:106:8093:c588:be02:e33b (AS51468) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records   219ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 2362DFAC1BB9F66402E0636BDEF478E5…
SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 2362DFAC1BB9F66402E0636BDEF478E5…
SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 2362DFAC1BB9F66402E0636BDEF478E5…
SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 2362DFAC1BB9F66402E0636BDEF478E5…

🔐 DNSSEC#

190ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

57ms
FieldValue
Serial2026101303
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-19 14:43:44
FieldValue
RegistrarONE.COM A/S
Registered1997-09-30
Expires2029-09-30 (1073d)

🔗 Same registrant#

5 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).

DomainRegistrar
adisk.dkONE.COM A/S
blavnsfeldt.dkONE.COM A/S
dansk-ejerkapital.dkONE.COM A/S
danskejerkapital.dkONE.COM A/S
internetbase.dkONE.COM A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
92ms
A
90ms
MX
92ms
AAAA
63ms
TXT
270ms
CAA
91ms
HTTPS
89ms
TLSA
219ms
SOA
57ms
MTA-STS
116ms
DNSSEC
190ms
SRV
112ms
Total
1237ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-21 14:19:57 1276ms 2 NS 1 A 4 MX 🔒 Secure
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 shown 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 1169ms 2 NS 1 A 4 MX 🔒 Secure
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