denblåhimmel.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 19 November 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.100 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by server1.cleanxpert.pl. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 94.231.103.100 | 600s | dnsforward.simply.com | AS48854 | team.blue Denmark A/S | 94.231.96.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | server1.cleanxpert.pl | 169.58.7.66 2a02:c207:2343:6476::1 |
server1.cleanxpert.pl server1.cleanxpert.pl |
AS51167 Contabo GmbH AS51167 Contabo GmbH |
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (denblåhimmel.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.denblåhimmel.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:webmaster@cleanxpert.dk |
| www | 94.231.103.100 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~4096 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 | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101200 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2020-11-19 |
| Expires | 2026-11-30 (35d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 22:47:09 shown | 399ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 14:30:29 | 721ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 00:52:35 | 827ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 21:40:04 | 794ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 04:22:49 | 1266ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 05:48:45 | 672ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-26 21:56:50 | 804ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-22 19:06:26 | 2957ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 18:26:31 | 846ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-27 02:37:35 | 1822ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-22 14:41:08 | 713ms | 4 NS 1 A 2 MX | ⚠️ Bogus |
| 2026-06-17 01:45:06 | 513ms | 4 NS 1 A 2 MX | 🔒 Secure |