cssyd.dk is a .dk domain served by 3 nameservers (ns5.chosting.dk, ns6.chosting.dk, ns7.chosting.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.216.126 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by cssyd.dk. The zone is DNSSEC-signed but currently fails validation, 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 |
|---|---|---|---|---|---|---|---|
| 178.20.216.126 | 14400s | server16.chosting.dk | AS21060 | Atea A/S | 178.20.216.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 14400s | cssyd.dk | 178.20.216.126 2a01:7cc0:101:ffff::1:10 |
server16.chosting.dk server16.chosting.dk |
AS21060 Atea A/S AS21060 Atea A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 178.20.216.126 |
| 🔶 Autoconfig | 178.20.216.126 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:7cc0:101:ffff::1:10 | 14400s | server16.chosting.dk | AS21060 | Atea A/S | 2a01:7cc0:100:0:0:0:0:0/40 | 🇩🇰 Denmark | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| v=spf1 ip4:178.20.216.126 include:spf.chosting.dk +a +mx ~all |
| Policy | Record (cssyd.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:178.20.216.126 include:spf.chosting.dk +a +mx ~all |
| Policy | Record (_dmarc.cssyd.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | cssyd.dk (all on cssyd.dk) |
| www vs bare domain | Same network cssyd.dk: 178.20.216.126 2a01:7cc0:101:ffff::1:10 (AS21060) www.cssyd.dk: 178.20.216.126 2a01:7cc0:101:ffff::1:10 (AS21060) |
| 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: 5/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.cssyd.dk | zWLKI4qZ24o2yrI5dHShNvYD8mbUNbDiy69as4ftj6I |
| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | broken trust chain resolving 'cssyd.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2026052701 |
| Primary NS (MNAME) | ns5.chosting.dk |
| Responsible (RNAME) | logs@chosting.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 09:47:48 | 1103ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-01 06:28:04 | 613ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 23:12:59 | 705ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 06:30:20 | 9934ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-28 21:11:39 | 982ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-01 07:33:55 | 894ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-25 04:35:42 | 667ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 15:54:54 | 1118ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 03:02:56 shown | 754ms | 3 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-16 23:06:30 | 515ms | 3 NS 1 A 1 MX | 🔓 Insecure |