j2c.dk is a .dk domain served by 3 nameservers (helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com). It was registered on 21 December 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 78.47.89.142 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mx1.j2c.dk. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 78.47.89.142 | 10800s | static.142.89.47.78.clients.your-server.de | AS24940 | Hetzner Online GmbH | 78.46.0.0/15 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.j2c.dk | 88.99.37.222 | mx1.j2c.dk | AS24940 Hetzner Online GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mx1.j2c.dk → 88.99.37.222 |
| 🔶 Autoconfig | mx1.j2c.dk → 88.99.37.222 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 20 | 443 | mx1.j2c.dk |
| TXT Record |
|---|
| google-site-verification=D2VsaTvKLDt-vxzzVQk_uX0nYzpocxwYFae9EcjCixY |
| v=spf1 mx ip4:88.99.37.222/32 ip4:94.130.229.78/32 -all |
| Policy | Record (j2c.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx ip4:88.99.37.222/32 ip4:94.130.229.78/32 -all |
| Policy | Record (_dmarc.j2c.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@j2c.dk; ruf=mailto:dmarc@j2c.dk; sp=reject; adkim=s; aspf=s |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| www CNAME | j2c.dk (all on j2c.dk) → 78.47.89.142 (AS24940) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| dkim | — | 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: 1/10 · 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 | 2026101101 |
| Primary NS (MNAME) | hydrogen.ns.hetzner.com |
| Responsible (RNAME) | dns@hetzner.com |
| Refresh | 86400s |
| Retry | 10800s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2004-12-21 |
| Expires | 2026-12-31 (71d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 01:53:34 shown | 679ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-08 00:17:17 | 670ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 02:28:39 | 1239ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-13 15:09:28 | 3414ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 07:59:46 | 2018ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-18 07:23:15 | 846ms | 3 NS 1 A 1 MX | 🔓 Insecure |