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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 212.237.178.116 | 86400s | virgil.koldfront.dk | AS204151 | EWII Bredbaand A/S | 212.237.176.0/21 | 🇩🇰 Denmark | Frederikssund |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 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 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _xmpp-client._tcp | 5 | 0 | 5222 | koldfront.dk |
| _xmpp-server._tcp | 5 | 0 | 5269 | koldfront.dk |
| TXT Record |
|---|
| v=spf1 ip4:212.237.178.116 a:virgil.koldfront.dk mx -all |
| yahoo-verification-key=CoqcwyNYmerl+IbNY32SK/vnmtVLY3SWvT4VtMrkJys= |
| Policy | Record (koldfront.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:212.237.178.116 a:virgil.koldfront.dk mx -all |
| Policy | Record (_dmarc.koldfront.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; adkim=r; aspf=r; pct=100 |
| Check | Result |
|---|---|
| Status | 🔒 Enforce |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✓ Valid |
| Mode | enforce |
| Policy ID | 202408091347 |
| max_age | 2592000s |
| Policy MX | mail.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 |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:asjo@koldfront.dk |
| 0 | issue | letsencrypt.org |
| www CNAME | virgil.koldfront.dk (all on koldfront.dk) |
| www vs bare domain | Same network koldfront.dk: 212.237.178.116 2a06:4001:d06f:0:eee7:a7ff:fe1d:826c (AS204151) www.koldfront.dk: 212.237.178.116 2a06:4001:d06f:0:eee7:a7ff:fe1d:826c (AS204151) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | 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.
DNS lookups: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026080714 |
| Primary NS (MNAME) | ns1.koldfront.dk |
| Responsible (RNAME) | asjo@koldfront.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1999-10-11 |
| Expires | 2026-12-31 (75d) |
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 |
|---|---|
| kammeratadam.dk | Punktum dk A/S (direct) |
| speedofdarkness.dk | Domeneshop AS |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 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 |
| 2026-09-15 03:11:45 | 4346ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-08 01:53:17 | 7001ms | 3 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-03 15:58:18 | 2270ms | 3 NS 1 A 3 MX | 🔒 Secure |