| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 83.135.57.164 | 43200s | i538739A4.versanet.de | AS8881 | 1&1 Versatel GmbH | 83.135.0.0/16 | 🇩🇪 Germany | Münster |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 100 | 43200s | mail.harke.com | 83.135.57.146 | mail.harke.com | AS8881 1&1 Versatel GmbH |
| 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 | 2026012315 |
| Primary NS (MNAME) | dns1.harke.com |
| Responsible (RNAME) | root@mail.syntana.com |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-24 19:22:41 | 16948ms | 3 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-24 20:45:16 | 908ms | 3 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 11:04:02 | 964ms | 3 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 11:02:44 | 798ms | 3 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 10:58:02 | 790ms | 3 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 10:53:57 | 1162ms | 3 NS 1 A 1 MX | 🔓 Insecure | View |