dengem.dk is a .dk domain served by 2 nameservers (ns1.cyon.ch, ns2.cyon.ch). It was registered on 15 March 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 149.126.6.23 is hosted by cyon AG (AS47302) in Switzerland. Mail is handled by mail.dengem.dk. The zone is not DNSSEC-signed, has no 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.cyon.ch | 185.174.216.2 2a01:ab20:0:185::2 |
ns1.cyon.ch — |
AS47302 cyon AG AS47302 cyon AG |
| ns2.cyon.ch | 2001:67c:234::2 91.206.24.2 |
— ns2.cyon.ch |
AS47302 cyon AG AS47302 cyon AG |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 149.126.6.23 | 14400s | vsa-firate.cyon.net | AS47302 | cyon AG | 149.126.0.0/21 | 🇨🇭 Switzerland | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 14400s | mail.dengem.dk | 149.126.6.23 2a01:ab20:0:6::23 |
vsa-firate.cyon.net vsa-firate.cyon.net |
AS47302 cyon AG AS47302 cyon AG |
| Service | CNAME / IP |
|---|---|
| 🔶 Autoconfig | maildiscovery.cyon.ch → 194.126.200.25 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:ab20:0:6::23 | 14400s | vsa-firate.cyon.net | AS47302 | cyon AG | 2a01:ab20:0:0:0:0:0:0/32 | 🇨🇭 Switzerland | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | maildiscovery.cyon.ch |
| TXT Record |
|---|
| v=spf1 include:spf.protection.cyon.net -all |
| Policy | Record (dengem.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.cyon.net -all |
| www CNAME | dengem.dk (all on dengem.dk) |
| www vs bare domain | Same network dengem.dk: 149.126.4.150 2a01:ab20:0:4::150 (AS47302) www.dengem.dk: 149.126.4.150 2a01:ab20:0:4::150 (AS47302) |
| 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: 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 | 2022052302 |
| Primary NS (MNAME) | ns1.cyon.ch |
| Responsible (RNAME) | server@cyon.ch |
| Refresh | 14400s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | RegistryGate GmbH |
| Registered | 2021-03-15 |
| Expires | 2027-03-31 (162d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 17:17:32 | 858ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 17:31:37 | 10691ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 15:29:11 | 4277ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 19:27:01 | 1257ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 17:23:14 shown | 1351ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-19 22:10:59 | 7512ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 01:50:05 | 593ms | 2 NS 1 A 1 MX | 🔓 Insecure |