| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.57.241.155 | 3600s | 87-57-241-155-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.57.0.0/16 | 🇩🇰 Denmark | Hvidovre |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.40 |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (juhlogrehfeld.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081301 |
| 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 | |
|---|---|---|---|---|
| 2026-08-14 04:40:13 | 1533ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-08 04:33:24 | 5803ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-17 06:22:37 | 1570ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-29 23:15:49 | 909ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-26 00:04:14 | 1184ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 15:34:22 | 974ms | 2 NS 1 A 1 MX | 🔒 Secure | View |