| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.104.90.21 | 3600s | 87.104.90.21.dynamic.dhcp.aura-net.dk | AS204274 | AURA Fiber A/S | 87.104.64.0/18 | 🇩🇰 Denmark | Hørning |
| TXT Record |
|---|
| protonmail-verification=64afc7a381881572ca13299f6a975e1f44a5b6db |
| v=spf1 include:_spf.protonmail.ch mx ~all |
| Policy | Record (trendhoj.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch mx ~all |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| 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 | |
|---|---|---|---|---|
| 2026-08-10 04:28:28 | 1191ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-07-18 01:44:51 | 4225ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-07-11 03:36:17 | 6191ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-07-02 14:47:47 | 2655ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-24 08:17:12 | 2897ms | 2 NS 1 A 2 MX | ⚠️ Bogus | View |
| 2026-06-22 17:45:39 | 1101ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-17 11:46:14 | 904ms | 2 NS 1 A 2 MX | 🔒 Secure | View |