| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 176.21.254.182 | 3600s | 176-21-254-182-cable.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 176.21.0.0/16 | 🇩🇰 Denmark | Elsinore |
| 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 | 2026082301 |
| 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 | |
|---|---|---|---|---|
| 2026-08-24 04:09:30 | 986ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-24 00:38:08 | 573ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-19 08:13:53 | 4511ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-26 13:04:57 | 454ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-22 10:53:04 | 637ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 22:32:29 | 636ms | 2 NS 1 A 0 MX | 🔒 Secure | View |