| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 77.72.50.210 | 43200s | — | AS42236 | DTU Science Park a/s | 77.72.48.0/21 | 🇩🇰 Denmark | Kongens Lyngby |
| 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 | 2026090401 |
| 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 | |
|---|---|---|---|---|
| 2026-09-07 02:08:43 | 723ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-09 14:11:46 | 1280ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-02 01:23:34 | 9724ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-25 09:10:10 | 6009ms | 2 NS 1 A 4 MX | 🔒 Secure | View |
| 2026-06-17 17:38:37 | 873ms | 2 NS 1 A 4 MX | 🔒 Secure | View |