| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.centrum.dk | 213.5.39.156 | 213-5-39-156.static.ip.bodata.dk | AS49974 Bo data ApS |
| ns2.centrum.dk | 80.209.94.234 | 80.209.94.234.static.fibianet.dk | AS44869 FIBIA P/S |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 5.22.145.121 | — | relay.mail-forwarder.io | AS16509 | Amazon.com, Inc. | 5.22.145.0/24 | 🇩🇪 Germany | — |
| 5.22.145.16 | — | relay.mail-forwarder.io | AS16509 | Amazon.com, Inc. | 5.22.145.0/24 | 🇩🇪 Germany | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a00:18e0:5:2:7577:4e4d:413b:f507 | — | relay.mail-forwarder.io | AS16509 | Amazon.com, Inc. | 2a00:18e0:5:0:0:0:0:0/48 | 🇩🇪 Germany | — |
| 2a00:18e0:5:3:dfe2:c743:85aa:61bc | — | relay.mail-forwarder.io | AS16509 | Amazon.com, Inc. | 2a00:18e0:5:0:0:0:0:0/48 | 🇩🇪 Germany | — |
| 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 | 2021102800 |
| Primary NS (MNAME) | ns1.centrum.dk |
| Responsible (RNAME) | tech@key-systems.net |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 28800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-07-02 13:53:55 | 9417ms | 2 NS 2 A 0 MX | 🔓 Insecure | View |
| 2026-06-26 19:13:36 | 625ms | 2 NS 2 A 0 MX | 🔓 Insecure | View |
| 2026-06-21 22:48:35 | 1966ms | 2 NS 2 A 0 MX | 🔓 Insecure | View |
| 2026-06-21 10:38:06 | 1100ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-21 06:58:13 | 512ms | 2 NS 2 A 0 MX | 🔓 Insecure | View |
| 2026-06-18 01:29:11 | 1519ms | 2 NS 2 A 0 MX | 🔓 Insecure | View |