koldingmail.dk is a .dk domain served by 3 nameservers (ns4.hostonline.dk, ns5.hostonline.dk, ns6.hostonline.dk). It was registered on 4 October 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.195.185.220 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by he.hostonline.dk, mx-backup.hostonline.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 217.195.185.220 | 3600s | webhotel12.hostonline.dk | AS31027 | GlobalConnect A/S | 217.195.176.0/20 | 🇩🇰 Denmark | Tilst |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscoverredirect.hostonline.dk → 217.195.185.209 |
| TXT Record |
|---|
| v=spf1 a mx include:_spf.hostonline.dk -all |
| Policy | Record (koldingmail.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx include:_spf.hostonline.dk -all |
| Policy | Record (_dmarc.koldingmail.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; aspf=r; |
| www CNAME | koldingmail.dk (all on koldingmail.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 10 iterations · 8-byte salt · opt-out RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 6/10 · 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 | 2026101502 |
| Primary NS (MNAME) | ns4.hostonline.dk |
| Responsible (RNAME) | hostmaster@hostonline.dk |
| Refresh | 86400s |
| Retry | 7200s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 172800s |
| Field | Value |
|---|---|
| Registrar | TS COMPUTER ApS |
| Registered | 2019-10-04 |
| Expires | 2026-10-31 (14d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 12:12:48 shown | 657ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-11 04:15:31 | 604ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-05 19:24:22 | 423ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 19:11:07 | 730ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-29 19:02:20 | 579ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-25 20:06:46 | 518ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-23 19:06:39 | 590ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-17 07:07:40 | 1652ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-10 06:04:20 | 646ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-31 10:03:02 | 537ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 22:10:27 | 767ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-26 15:33:00 | 514ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-21 05:36:06 | 959ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-16 04:41:02 | 2650ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-11 04:02:40 | 3567ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-06 18:33:29 | 1229ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-03 13:17:48 | 18292ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-28 00:52:13 | 858ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-22 20:56:11 | 1800ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-17 21:57:41 | 2701ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-12 09:35:47 | 1086ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-08 13:52:18 | 1525ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-03 19:05:46 | 7249ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-28 18:56:07 | 1416ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-26 13:30:21 | 946ms | 3 NS 1 A 2 MX | 🔒 Secure |