| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.55.100.171 | 600s | 87-55-100-171-cable.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.48.0.0/13 | 🇩🇰 Denmark | Struer Municipality |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 900s | mail.voresitafdeling.dk | 87.55.100.171 | 87-55-100-171-cable.dk.customer.tdc.net | AS3292 TDC Holding A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | byensgardin.dk → 87.55.100.171 |
| 🔶 Autoconfig | mail.byensgardin.dk → 87.55.100.171 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 10 | 443 | mail.byensgardin.dk |
| TXT Record |
|---|
| v=spf1 a mx a:byensgardin.dk ip4:87.55.100.171 ip6:fe80::baae:edff:fe7a:6e4 ~all |
| Policy | Record (byensgardin.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx a:byensgardin.dk ip4:87.55.100.171 ip6:fe80::baae:edff:fe7a:6e4 ~all |
| Policy | Record (_dmarc.byensgardin.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; pct=100; ruf=mailto:postmaster@byensgardin.dk; rua=mailto:postmaster@byensgardin.dk |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.byensgardin.dk | byensgardin.dk |
| 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 | |
|---|---|---|---|---|
| 2026-08-27 16:04:03 | 990ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-26 00:39:19 | 704ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-10 18:47:09 | 4834ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-02 02:21:51 | 1262ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-02 00:32:06 | 598ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-29 09:56:52 | 1201ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-21 13:50:15 | 1185ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-20 01:54:50 | 1017ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-16 18:05:51 | 556ms | 2 NS 1 A 1 MX | 🔒 Secure | View |