| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 51.12.31.0 | 3600s | — | AS8075 | Microsoft Corporation | 51.12.0.0/15 | 🇸🇪 Sweden | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mail.proelteknik.dk → 86.52.26.99 |
| 🔶 Autoconfig | 51.12.31.0 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 1 | 1 | 443 | mail.proelteknik.dk |
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| apple-domain-verification=7GzsyG5fmq2KJRQV |
| v=spf1 ip4:86.52.26.99 include:spf-esec.heimdalsecurity.com include:spf.minuba.dk include:spf.mailanyone.net -all |
| Policy | Record (proelteknik.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:86.52.26.99 include:spf-esec.heimdalsecurity.com include:spf.minuba.dk include:spf.mailanyone.net -all |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.eu-esec-01.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| SMTP _25._tcp.eu-esec-02.heimdalsecurity.com | DANE-EE · SPKI · SHA-256 | 2E8933DD6DB99304A5A9D5C4ECDE7B8E… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026071601 |
| Primary NS (MNAME) | ns1.123hotel.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-09-02 03:07:05 | 696ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-07-17 12:01:13 | 985ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-24 17:34:51 | 769ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-22 13:12:27 | 2821ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-22 12:47:18 | 913ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-17 11:32:16 | 1257ms | 2 NS 1 A 2 MX | 🔒 Secure | View |