fredholm.dk

Records from scan: 2026-10-21 14:19:57  ·  1276ms total
⬇ 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   156ms
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   115ms
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   83ms
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   91ms
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   277ms
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:reports@internetbase.dk; ruf=mailto:reports@internetbase.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#

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   413ms
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#

180ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

85ms
FieldValue
Serial2026102101
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
156ms
A
115ms
MX
83ms
AAAA
91ms
TXT
277ms
CAA
131ms
HTTPS
137ms
TLSA
413ms
SOA
85ms
MTA-STS
134ms
DNSSEC
180ms
SRV
142ms
Total
1276ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-21 14:19:57 shown 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 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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