fredholm.dk

Records from scan: 2026-10-20 04:08:25  ·  779ms 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   42ms
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   31ms
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   34ms
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   33ms
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   151ms
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#

checked 2026-10-20 04:08:25
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   75ms
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#

107ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

46ms
FieldValue
Serial2026101901
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 (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).

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

⏱️ Lookup Timing#

NS
42ms
A
31ms
MX
34ms
AAAA
33ms
TXT
151ms
CAA
30ms
HTTPS
33ms
TLSA
75ms
SOA
46ms
MTA-STS
47ms
DNSSEC
107ms
SRV
43ms
Total
779ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-20 04:08:25 shown 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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