| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.62.101.41 | 900s | 0x573e6529.static.cust.fastspeed.dk | AS3292 | TDC Holding A/S | 87.62.0.0/15 | 🇩🇰 Denmark | Viborg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 900s | mail1.calypso.dk | 87.62.101.41 | 0x573e6529.static.cust.fastspeed.dk | AS3292 TDC Holding A/S |
| 20 | 900s | mail2.calypso.dk | 87.62.101.41 | 0x573e6529.static.cust.fastspeed.dk | AS3292 TDC Holding A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | calypso.dk → 87.62.101.41 |
| 🔶 Autoconfig | calypso.dk → 87.62.101.41 |
| TXT Record |
|---|
| v=spf1 mx:tychobrahe.dk -all |
| Policy | Record (calypso.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx:tychobrahe.dk -all |
| Policy | Record (_dmarc.calypso.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:post@tychobrahe.dk; ruf=mailto:post@tychobrahe.dk; |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.calypso.dk | calypso.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081001 |
| 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 05:15:41 | 912ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-10 14:48:52 | 1062ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-07-15 00:09:04 | 1044ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-07-11 21:10:23 | 2708ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-27 01:10:27 | 717ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-20 14:33:16 | 744ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-19 23:29:23 | 889ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-16 18:55:46 | 716ms | 2 NS 1 A 2 MX | 🔒 Secure | View |