| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 89.23.247.142 | 43200s | 89-23-247-142.ip4.fiberby.net | AS42541 | Fiberby ApS | 89.23.224.0/19 | 🇩🇰 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 | 2026082501 |
| 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 19:49:47 | 421ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-26 07:07:13 | 16441ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-23 05:22:34 | 4762ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-15 14:07:14 | 7811ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-02 01:16:55 | 587ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-28 03:21:01 | 884ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-25 23:38:09 | 832ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-21 03:29:49 | 385ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-20 20:25:38 | 540ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-19 22:05:41 | 2430ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-16 15:50:26 | 2471ms | 2 NS 1 A 0 MX | 🔒 Secure | View |