| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.51.34.21 | 3600s | 87-51-34-21-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.48.0.0/13 | 🇩🇰 Denmark | Aarhus |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.bootnigger.dk | 87.51.34.21 | 87-51-34-21-static.dk.customer.tdc.net | 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 | |
|---|---|---|---|---|
| 2026-08-26 09:49:25 | 714ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-12 09:58:57 | 3899ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-17 22:31:40 | 2866ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-12 08:09:54 | 2553ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-26 17:39:36 | 519ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-26 01:59:52 | 1442ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-24 09:55:36 | 575ms | 2 NS 1 A 1 MX | ⚠️ Bogus | View |
| 2026-06-16 16:09:44 | 3481ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-16 16:08:34 | 380ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-16 16:01:55 | 1445ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-16 16:00:54 | 513ms | 2 NS 1 A 1 MX | 🔒 Secure | View |