| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.61.91.195 | 3600s | 0x573d5bc3.static.cust.fastspeed.dk | AS3292 | TDC Holding A/S | 87.61.0.0/17 | 🇩🇰 Denmark | Silkeborg |
| 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 | 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 | |
|---|---|---|---|---|
| 2026-08-27 10:14:42 | 579ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-23 20:33:29 | 4668ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-12 17:15:50 | 1753ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-08 18:41:04 | 729ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-06 14:53:08 | 622ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-03 10:26:52 | 624ms | 2 NS 1 A 4 MX | 🔒 Secure | View |
| 2026-06-21 07:57:41 | 581ms | 2 NS 1 A 4 MX | 🔒 Secure | View |
| 2026-06-19 18:53:59 | 552ms | 2 NS 1 A 4 MX | 🔒 Secure | View |
| 2026-06-16 21:26:17 | 689ms | 2 NS 1 A 4 MX | 🔒 Secure | View |