| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.58.172.30 | 43200s | 87-58-172-30-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.58.160.0/19 | 🇩🇰 Denmark | Ringsted |
| 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 | 2026080901 |
| 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 | |
|---|---|---|---|---|
| 2026-09-04 09:15:43 | 456ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-27 07:42:57 | 885ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-10 12:14:10 | 4356ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-14 14:57:32 | 555ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-11 18:38:42 | 623ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-26 13:07:19 | 1354ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-20 02:31:05 | 533ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-16 13:36:12 | 578ms | 2 NS 1 A 0 MX | 🔒 Secure | View |