| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 5.57.55.140 | 3600s | — | AS198608 | Symbion A/S | 5.57.48.0/21 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081101 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-28 00:18:36 | 584ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-26 07:17:14 | 536ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-12 02:00:11 | 2221ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-20 17:29:52 | 6419ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-17 23:31:52 | 563ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-12 20:01:48 | 568ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-02 01:45:38 | 566ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-16 19:36:00 | 418ms | 2 NS 1 A 0 MX | 🔒 Secure | View |