| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 172.105.244.78 | 600s | 172-105-244-78.ip.linodeusercontent.com | AS63949 | Akamai Connected Cloud | 172.105.192.0/18 | 🇩🇪 Germany | Frankfurt am Main |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.105.244.78 |
| 🔶 Autoconfig | 172.105.244.78 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:7e01::f03c:93ff:fee0:8ba5 | 600s | — | AS63949 | Akamai Connected Cloud | 2a01:7e00:0:0:0:0:0:0/30 | 🇩🇪 Germany | Frankfurt am Main |
| TXT Record |
|---|
| protonmail-verification=519708238b81c0b45c5a154bb9791876bb3dcbbf |
| v=spf1 include:_spf.protonmail.ch mx ~all |
| Policy | Record (raphaelneumann.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 | 2026083101 |
| 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 | |
|---|---|---|---|---|
| 2026-09-05 03:04:25 | 1949ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-27 07:20:10 | 902ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-23 17:28:02 | 1305ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-08-18 08:20:53 | 1099ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-07-23 14:10:50 | 5012ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-24 04:37:15 | 2000ms | 2 NS 1 A 2 MX | 🔒 Secure | View |
| 2026-06-23 16:28:41 | 1098ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-17 13:28:41 | 2830ms | 2 NS 1 A 2 MX | 🔒 Secure | View |