| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.57.241.43 | 3600s | 87-57-241-43-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.57.0.0/16 | 🇩🇰 Denmark | Hvidovre |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 87.57.241.43 |
| 🔶 Autoconfig | 87.57.241.43 |
| TXT Record |
|---|
| v=spf1 include:_include.mxhotel.dk -all |
| Policy | Record (billige-alarmer.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_include.mxhotel.dk -all |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026032401 |
| 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 | |
|---|---|---|---|---|
| 2026-06-28 16:50:55 | 820ms | 2 NS 1 A 3 MX | 🔒 Secure | View |
| 2026-06-23 10:00:07 | 769ms | 2 NS 1 A 3 MX | 🔒 Secure | View |
| 2026-06-22 20:47:42 | 3057ms | 2 NS 1 A 3 MX | 🔒 Secure | View |
| 2026-06-21 23:29:00 | 964ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-16 14:33:27 | 610ms | 2 NS 1 A 3 MX | 🔒 Secure | View |