| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 172.238.100.99 | 3600s | 172-238-100-99.ip.linodeusercontent.com | AS63949 | Akamai Connected Cloud | 172.236.0.0/14 | 🇩🇪 Germany | Frankfurt am Main |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.238.100.99 |
| 🔶 Autoconfig | 172.238.100.99 |
| 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 | |
|---|---|---|---|---|
| 2026-09-04 12:11:16 | 483ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-13 21:55:53 | 1266ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-15 21:42:30 | 658ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-23 00:40:31 | 614ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-20 03:56:07 | 1637ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 19:25:53 | 504ms | 2 NS 1 A 0 MX | 🔒 Secure | View |