cosc.dk is a .dk domain served by 4 nameservers (ns1.nordicway.dk, ns2.nordicway.dk, ns3.nordicway.dk and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.40.215.228 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mail.cosc.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 |
|---|---|---|---|---|---|---|---|
| 188.40.215.228 | 3600s | cp17.nordicway.dk | AS24940 | Hetzner Online GmbH | 188.40.0.0/16 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | mail.cosc.dk | 188.40.215.228 | cp17.nordicway.dk | AS24940 Hetzner Online GmbH |
| TXT Record |
|---|
| google-site-verification=LxS1_q0sf22kYwY8GdQsRAVt01GPAjWZQwnICpRIgCQ |
| v=spf1 +a +mx +ip4:188.40.215.228 include:relay.mailchannels.net ~all |
| Policy | Record (cosc.dk) |
|---|---|
| ~all (soft fail) | v=spf1 +a +mx +ip4:188.40.215.228 include:relay.mailchannels.net ~all |
| Policy | Record (_dmarc.cosc.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400 |
| www CNAME | cosc.dk (all on cosc.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | 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: 3/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.cosc.dk | xFzSsnZr8Dy-ZkHGej8H6rLph-cZ732uspqX3VdJZNY |
| 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 | 2026092400 |
| Primary NS (MNAME) | ns1.nordicway.dk |
| Responsible (RNAME) | server@nordicway.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-24 21:30:41 shown | 9467ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 02:32:08 | 1109ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 22:48:54 | 2326ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-25 15:46:57 | 5239ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-23 06:12:49 | 904ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-21 21:17:18 | 1177ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 22:38:12 | 1241ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-16 22:31:13 | 408ms | 4 NS 1 A 0 MX | 🔒 Secure |