bumerang.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.20.205.60 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.simply.com. The zone is DNSSEC-signed and validates, 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 | — | — | — |
| ns4.simply.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.20.205.60 | — | linux384.unoeuro.com | AS48854 | team.blue Denmark A/S | 185.20.204.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com -all |
| Policy | Record (bumerang.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com -all |
| Policy | Record (_dmarc.bumerang.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
DNS lookups: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2025042300 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 09:29:33 | 177ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-21 07:52:41 | 222ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-20 01:24:51 | 94ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-18 23:14:54 | 235ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-17 21:32:50 | 220ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-16 20:48:00 | 224ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-15 20:05:30 | 202ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-14 14:58:36 | 204ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-13 14:33:47 | 124ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-12 14:06:43 | 117ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-11 11:07:30 | 224ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-10 09:11:58 | 136ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-09 08:39:16 | 258ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-08 08:35:54 | 816ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-07 08:30:23 | 305ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-06 02:48:26 | 213ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-05 02:44:46 | 208ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-04 02:33:45 | 97ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-03 02:31:10 | 375ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-02 02:23:29 | 284ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-01 02:14:17 | 286ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-30 02:02:48 | 669ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-29 10:30:54 | 218ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-28 10:22:09 | 212ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-27 10:10:42 | 218ms | 1 NS 0 A 0 MX | ❓ Unknown |