| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 172.104.156.98 | 43200s | 172-104-156-98.ip.linodeusercontent.com | AS63949 | Akamai Connected Cloud | 172.104.128.0/18 | 🇩🇪 Germany | Frankfurt am Main |
| 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 | 2026081401 |
| 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 19:20:39 | 523ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-15 10:47:04 | 773ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-16 17:22:21 | 930ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-21 22:46:20 | 515ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-21 05:35:02 | 825ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-21 01:17:11 | 1036ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-18 01:59:22 | 821ms | 2 NS 1 A 0 MX | 🔒 Secure | View |