| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 83.91.139.21 | 20000s | 83-91-139-21-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 83.90.0.0/15 | 🇩🇰 Denmark | Ballerup Municipality |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mail.maibrith.dk | 83.91.139.21 | 83-91-139-21-static.dk.customer.tdc.net | AS3292 TDC Holding A/S |
| 20 | 43200s | backup-mx.post.tele.dk | — | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | maibrith.dk → 83.91.139.21 |
| 🔶 Autoconfig | maibrith.dk → 83.91.139.21 |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.maibrith.dk | maibrith.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026082401 |
| 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 01:31:58 | 1152ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-14 14:24:45 | 4994ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-07-25 15:11:14 | 826ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-26 23:59:21 | 710ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-22 06:18:11 | 591ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-22 02:07:18 | 909ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-18 06:17:41 | 2605ms | 2 NS 1 A 2 MX | 🔒 Secure | View |