| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.52.111.77 | 43200s | 0x57346f4d.static.cust.fastspeed.dk | AS3292 | TDC Holding A/S | 87.48.0.0/13 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | frausings.dk | 87.52.111.77 | 0x57346f4d.static.cust.fastspeed.dk | AS3292 TDC Holding A/S |
| 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 | |
|---|---|---|---|---|
| 2026-08-13 02:46:18 | 707ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-18 20:58:30 | 620ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-14 04:34:08 | 678ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-25 03:53:28 | 1718ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-22 20:29:51 | 546ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 10:04:27 | 838ms | 2 NS 1 A 1 MX | 🔒 Secure | View |