| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.57.107.247 | 3600s | 87-57-107-247-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.57.0.0/16 | 🇩🇰 Denmark | Hobro |
| 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 | |
|---|---|---|---|---|
| 2026-08-27 12:31:24 | 467ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-12 15:34:02 | 773ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-20 00:46:54 | 4501ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-18 16:11:04 | 660ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-14 09:45:04 | 4698ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-22 19:35:46 | 3046ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-21 18:40:46 | 1190ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-20 15:00:41 | 968ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-16 12:46:58 | 592ms | 2 NS 1 A 0 MX | 🔒 Secure | View |