jtcom.dk is a .dk domain served by 2 nameservers (ns1.businessdns.dk, ns2.businessdns.dk). It was registered on 14 January 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 85.191.113.173 is hosted by AURA Fiber A/S (AS204274) in Denmark. Mail is handled by mx-backup.businessdns.dk, ardbeg.businessdns.dk. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.businessdns.dk | 85.191.113.163 | ns1.businessdns.dk | AS204274 AURA Fiber A/S |
| ns2.businessdns.dk | 85.191.113.164 | ns2.businessdns.dk | AS204274 AURA Fiber A/S |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 85.191.113.173 | 3600s | 85.191.113.173.static.dhcp.aura-net.dk | AS204274 | AURA Fiber A/S | 85.191.0.0/17 | 🇩🇰 Denmark | Hinnerup |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 86400s | mx-backup.businessdns.dk | 85.184.165.70 85.191.113.183 |
85.184.165.70.static.dhcp.aura-net.dk mailgate01.businessdns.dk |
AS204274 AURA Fiber A/S AS204274 AURA Fiber A/S |
| 50 | 86400s | ardbeg.businessdns.dk | 85.191.113.180 | ardbeg.businessdns.dk | AS204274 AURA Fiber A/S |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 100 | 443 | mail.businessdns.dk |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (jtcom.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| www | 85.191.113.173 (AS204274) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026101019 |
| Primary NS (MNAME) | ns1.businessdns.dk |
| Responsible (RNAME) | hostmaster@businessdns.dk |
| Refresh | 3600s |
| Retry | 7200s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 84600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2002-01-14 |
| Expires | 2027-03-31 (165d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 02:51:52 | 1333ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-16 02:30:44 | 1252ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-14 21:35:49 | 1436ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-13 21:11:20 | 1773ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-12 20:45:34 | 764ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-11 19:21:54 | 465ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-10 19:01:07 shown | 670ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-09 15:44:22 | 651ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-08 14:22:31 | 761ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-07 14:14:52 | 498ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-06 11:28:44 | 457ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-05 08:51:39 | 1265ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-04 08:28:15 | 1911ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-03 08:21:56 | 423ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-02 08:20:06 | 1107ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-01 08:16:07 | 736ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-30 08:08:21 | 711ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-29 07:59:19 | 628ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-28 06:33:31 | 591ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-27 06:16:51 | 599ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-26 06:08:34 | 639ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-25 06:03:38 | 1729ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-24 05:45:19 | 567ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-22 14:29:56 | 1680ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-15 13:48:18 | 1092ms | 2 NS 1 A 2 MX | 🔓 Insecure |