| 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 | |
|---|---|---|---|---|
| 2026-08-26 13:29:14 | 659ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-12 09:51:29 | 2141ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-18 15:22:09 | 747ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-17 11:19:01 | 4527ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-12 19:47:01 | 853ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-02 13:29:50 | 2408ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-21 01:16:49 | 404ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-16 14:00:11 | 605ms | 2 NS 1 A 0 MX | 🔒 Secure | View |