| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.52.107.152 | 3600s | 0x57346b98.static.cust.fastspeed.dk | AS3292 | TDC Holding A/S | 87.48.0.0/13 | 🇩🇰 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 | 2026081805 |
| 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 05:53:56 | 667ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-19 16:27:36 | 5195ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-18 16:26:00 | 2667ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-16 11:55:17 | 686ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-16 17:31:23 | 642ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-02 13:55:58 | 2520ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-27 01:27:32 | 441ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-21 09:36:23 | 1178ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-19 10:02:21 | 800ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-18 04:18:59 | 857ms | 2 NS 1 A 0 MX | 🔒 Secure | View |