| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.57.16.33 | 3600s | 87-57-16-33-cable.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.57.0.0/16 | 🇩🇰 Denmark | Aars |
| 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 | 2026081301 |
| 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 | |
|---|---|---|---|---|
| 2026-08-26 20:12:19 | 456ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-14 11:08:49 | 792ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-17 14:02:43 | 4525ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-16 12:54:01 | 626ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-03 08:59:00 | 470ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-18 04:40:41 | 677ms | 2 NS 1 A 0 MX | 🔒 Secure | View |