| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.69.37 | 600s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.203.158 | 600s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:4525 | 600s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3032::ac43:cb9e | 600s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.69.37,172.67.203.158 ech=AEX+DQBBvgAgACD24gmTILd0Z/WnkYY5L23kOn2DhJNgCIM2lZufrsppdgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4525,2606:4700:3032::ac43:cb9e |
| TXT Record |
|---|
| protonmail-verification=43a0507386796334b04dda9bcd77407e0bf41666 |
| v=spf1 include:_spf.protonmail.ch mx ~all |
| Policy | Record (helpbase.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch mx ~all |
| Policy | Record (_dmarc.helpbase.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| 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 | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2406830087 |
| Primary NS (MNAME) | kate.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-27 20:35:54 | 943ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-08-26 04:06:27 | 761ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-08-15 02:06:00 | 9383ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-08-06 07:18:00 | 1789ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-06-26 03:53:21 | 983ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-06-24 23:19:05 | 2406ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-06-24 15:27:03 | 1771ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-06-23 19:52:59 | 882ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-22 06:41:25 | 1167ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-17 11:17:54 | 1084ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |
| 2026-06-17 11:14:53 | 956ms | 2 NS 2 A 2 MX | 🔓 Insecure | View |