blue-tech.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 17 September 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.20.205.53 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by bluetech-dk01b.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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.simply.com | — | — | — |
| ns2.simply.com | — | — | — |
| ns3.simply.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.20.205.53 | — | linux377.unoeuro.com | AS48854 | team.blue Denmark A/S | 185.20.204.0/22 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| v=spf1 ip4:89.184.152.134 ip4:212.37.152.72 include:spf.protection.outlook.com include:spf.eu.exclaimer.net -all |
| Policy | Record (blue-tech.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:89.184.152.134 ip4:212.37.152.72 include:spf.protection.outlook.com include:spf.eu.exclaimer.net -all |
| Policy | Record (_dmarc.blue-tech.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
| www | 185.20.205.53 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 |
DNS lookups: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2025123009 |
| 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 | 2014-09-17 |
| Expires | 2027-09-30 (347d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 13:59:11 | 438ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-04 06:14:15 | 1397ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 03:35:55 | 9667ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-20 17:45:18 | 6222ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-01 19:33:49 | 1157ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 13:53:35 | 1161ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 14:17:29 | 2215ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 15:16:17 | 1899ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 15:08:09 | 649ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 15:04:01 | 2737ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 15:00:43 shown | 706ms | 3 NS 1 A 1 MX | 🔓 Insecure |