| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 83.89.251.156 | 600s | 0x5359fb9c.static.cust.fastspeed.dk | AS3292 | TDC Holding A/S | 83.89.0.0/16 | 🇩🇰 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 | 2026081201 |
| 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 04:03:33 | 478ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-14 01:37:09 | 2594ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-12 01:18:26 | 4701ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-14 02:52:20 | 638ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-26 15:49:52 | 1284ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-25 21:59:15 | 695ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-16 19:56:21 | 429ms | 2 NS 1 A 0 MX | 🔒 Secure | View |