| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.concrete5danmark.dk | 88.99.120.238 | ns1.dnshotel.dk | AS24940 Hetzner Online GmbH |
| ns2.concrete5danmark.dk | 94.130.170.39 | ns2.dnshotel.dk | AS24940 Hetzner Online GmbH |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 138.201.255.81 | 360s | server.concrete5danmark.dk | AS24940 | Hetzner Online GmbH | 138.201.0.0/16 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 360s | concrete5danmark.dk | 138.201.255.81 2a01:4f8:173:2652::1 |
server.concrete5danmark.dk server.concrete5danmark.dk |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:173:2652::1 | 14400s | server.concrete5danmark.dk | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | Falkenstein |
| TXT Record |
|---|
| v=spf1 ip4:138.201.255.81 include:spf.azehosting.net +mx +a ~all |
| Policy | Record (concrete5danmark.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:138.201.255.81 include:spf.azehosting.net +mx +a ~all |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.concrete5danmark.dk | LjBl2whpElbgLEu98tFjxLpjWmp6U7AKWVnPRateLqM |
| 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 | 2026081303 |
| Primary NS (MNAME) | ns1.concrete5danmark.dk |
| Responsible (RNAME) | server-admin@azehosting.net |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-27 20:15:45 | 14090ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-08-26 21:57:03 | 3055ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-08-13 17:55:52 | 14973ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-08-12 13:29:25 | 842ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-08-03 17:31:00 | 14925ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-07-31 17:28:13 | 1129ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-07-27 01:43:32 | 13547ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-07-26 01:18:40 | 9553ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-07-25 01:03:00 | 883ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-07-14 22:17:09 | 13594ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-07-11 21:00:13 | 872ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-07-07 04:47:34 | 1020ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-24 16:34:18 | 904ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-21 08:28:53 | 1137ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-20 22:13:53 | 902ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-19 09:43:10 | 1119ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-18 14:35:41 | 1551ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 00:46:51 | 53108ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-16 22:26:09 | 1573ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-16 22:10:58 | 491ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-16 22:01:00 | 600ms | 2 NS 1 A 1 MX | 🔓 Insecure | View |