| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 212.242.221.253 | 43200s | — | AS9158 | Telenor A/S | 212.242.0.0/16 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 212.242.221.253 |
| 🔶 Autoconfig | 212.242.221.253 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081101 |
| 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 | |
|---|---|---|---|---|
| 2026-08-27 20:35:40 | 817ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-26 18:03:37 | 575ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-13 10:16:51 | 2693ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-18 05:43:45 | 602ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-13 09:05:02 | 783ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-30 03:46:40 | 573ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 01:06:10 | 587ms | 2 NS 1 A 0 MX | 🔒 Secure | View |