koldfront.dk

📜 Historical scan 2026-08-12 06:46:34  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

koldfront.dk is a .dk domain served by 3 nameservers (ns1.koldfront.dk, ns2.koldfront.dk, ns3.koldfront.dk). It was registered on 11 October 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.237.178.116 is hosted by EWII Bredbaand A/S (AS204151) in Denmark. Mail is handled by mail.koldfront.dk, anton.koldfront.dk and 1 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#

3 records   87ms
NameserverIP addressesPTRASN / ISP
ns1.koldfront.dk 139.162.176.195
2a01:7e01::f03c:91ff:fe2c:eae8		 clara.koldfront.dk
clara.koldfront.dk		 AS63949 Akamai Connected Cloud
AS63949 Akamai Connected Cloud
ns2.koldfront.dk 2a01:4f9:c012:be42::1
95.216.188.131		 anton.koldfront.dk
anton.koldfront.dk		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
ns3.koldfront.dk 212.237.178.116
2a06:4001:d06f:0:eee7:a7ff:fe1d:826c		 virgil.koldfront.dk
—		 AS204151 EWII Bredbaand A/S
AS204151 EWII Bredbaand A/S

🌍 A Records#

1 records   57ms
IPTTLPTRASNISP / OrgCIDRCountryCity
212.237.178.116 86400s virgil.koldfront.dk AS204151 EWII Bredbaand A/S 212.237.176.0/21 🇩🇰 Denmark Ølstykke

📧 MX Records#

3 records   66ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s mail.koldfront.dk 212.237.178.116 virgil.koldfront.dk AS204151 EWII Bredbaand A/S
20 86400s anton.koldfront.dk 2a01:4f9:c012:be42::1
95.216.188.131		 anton.koldfront.dk
anton.koldfront.dk		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
20 86400s clara.koldfront.dk 139.162.176.195
2a01:7e01::f03c:91ff:fe2c:eae8		 clara.koldfront.dk
clara.koldfront.dk		 AS63949 Akamai Connected Cloud
AS63949 Akamai Connected Cloud

🔷 AAAA Records (IPv6)#

1 records   76ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a06:4001:d06f:0:eee7:a7ff:fe1d:826c 86400s — AS204151 EWII Bredbaand A/S 2a06:4000:0:0:0:0:0:0/29 🇩🇰 Denmark Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records   170ms
ServicePriorityWeightPortTarget
_xmpp-client._tcp 5 0 5222 koldfront.dk
_xmpp-server._tcp 5 0 5269 koldfront.dk

📝 TXT Records#

2 records   394ms
TXT Record
v=spf1 ip4:212.237.178.116 a:virgil.koldfront.dk mx -all
yahoo-verification-key=CoqcwyNYmerl+IbNY32SK/vnmtVLY3SWvT4VtMrkJys=

✉️ SPF#

PolicyRecord (koldfront.dk)
-all (hard fail) v=spf1 ip4:212.237.178.116 a:virgil.koldfront.dk mx -all

📨 DMARC#

PolicyRecord (_dmarc.koldfront.dk)
p=reject v=DMARC1; p=reject; adkim=r; aspf=r; pct=100

📬 MTA-STS#

293ms
CheckResult
Status🔒 Enforce
TXT record (_mta-sts)✓ Found
HTTPS policy✓ Valid
Modeenforce
Policy ID202408091347
max_age2592000s
Policy MXmail.koldfront.dk, clara.koldfront.dk, anton.koldfront.dk, mail.asjo.org, mail.auto-u.dk, mail.azda.se, mail.vantbanken.se, mail.kammeratadam.dk, mail.feedbase.org, mail.olduse.net, mail.d-a-d.band

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

2 records   90ms
FlagsTagValue
0 iodef mailto:asjo@koldfront.dk
0 issue letsencrypt.org

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-21 14:03:26
www CNAMEvirgil.koldfront.dk (all on koldfront.dk)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
mail — 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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2064ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2026080631
Primary NS (MNAME)ns1.koldfront.dk
Responsible (RNAME)asjo@koldfront.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-14 20:49:12
FieldValue
RegistrarPunktum dk A/S (direct)
Registered1999-10-11
Expires2026-12-31 (70d)

🔗 Same registrant#

2 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
kammeratadam.dkPunktum dk A/S (direct)
speedofdarkness.dkDomeneshop AS
📋 WHOIS#

⏱️ Lookup Timing#

NS
87ms
A
57ms
MX
66ms
AAAA
76ms
TXT
394ms
CAA
90ms
HTTPS
59ms
TLSA
207ms
SOA
0ms
MTA-STS
293ms
DNSSEC
2064ms
SRV
170ms
Total
3307ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-21 14:03:26 715ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-19 03:07:01 1041ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-18 03:02:01 829ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-17 02:57:21 15337ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-16 01:26:25 1735ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-14 20:13:13 7091ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-13 18:56:29 2700ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-12 16:40:46 754ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-11 16:20:02 1032ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-09 10:43:54 5608ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-08 10:33:48 2852ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-07 10:27:56 1261ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-06 06:25:45 4005ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-05 06:03:57 2576ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-04 05:38:06 3499ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-03 05:35:45 1020ms 3 NS 1 A 3 MX 🔒 Secure
2026-10-01 05:30:17 1101ms 3 NS 1 A 3 MX 🔒 Secure
2026-09-30 05:19:12 11664ms 3 NS 1 A 3 MX 🔒 Secure
2026-09-29 05:07:14 2670ms 3 NS 1 A 3 MX 🔒 Secure
2026-09-28 04:59:47 4151ms 3 NS 1 A 3 MX 🔒 Secure
2026-09-27 04:37:58 7841ms 3 NS 1 A 3 MX 🔒 Secure
2026-09-26 04:25:24 6184ms 3 NS 1 A 3 MX 🔒 Secure
2026-09-25 19:17:28 5080ms 3 NS 1 A 3 MX 🔒 Secure
2026-09-24 19:09:33 10277ms 3 NS 1 A 3 MX 🔒 Secure
2026-09-23 18:42:42 3801ms 3 NS 1 A 3 MX 🔒 Secure
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