| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 50.116.57.56 | 3600s | li449-56.members.linode.com | AS63949 | Akamai Connected Cloud | 50.116.0.0/18 | 🇺🇸 United States | Cedar Knolls |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 20 | 3600s | mail2.cyberbooking.dk | 50.116.57.56 | li449-56.members.linode.com | AS63949 Akamai Connected Cloud |
| 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 | 1 |
| Primary NS (MNAME) | ns1-36.azure-dns.com |
| Responsible (RNAME) | azuredns-hostmaster@microsoft.com |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-26 12:25:14 | 893ms | 4 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-07-03 01:43:04 | 1051ms | 4 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-26 16:35:16 | 2273ms | 4 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-22 22:16:30 | 755ms | 4 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-16 23:27:44 | 452ms | 4 NS 1 A 1 MX | 🔓 Insecure | View |
| 2026-06-16 23:20:28 | 2460ms | 4 NS 1 A 1 MX | 🔓 Insecure | View |