unserialized.dk is a .dk domain served by 2 nameservers (leah.ns.cloudflare.com, theo.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.40.18.34 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mail.tutanota.de. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 188.40.18.34 | 300s | static.34.18.40.188.clients.your-server.de | AS24940 | Hetzner Online GmbH | 188.40.0.0/16 | 🇩🇪 Germany | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 1 | 3600s | mail.tutanota.de | 185.205.69.211 185.205.69.213 185.205.69.214 |
mail.w11.tutanota.de mail.w13.tutanota.de mail.w14.tutanota.de |
AS210909 Tutao GmbH AS210909 Tutao GmbH AS210909 Tutao GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 188.40.18.34 |
| 🔶 Autoconfig | 188.40.18.34 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:d12:1ecd::2 | 300s | — | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | — |
| TXT Record |
|---|
| google-site-verification=kQJrcJ9tcT8CcLGuinElBUxTpnlY_m8wp9PnTq0waPo |
| t-verify=c495ebbc1875faeb2ff81a7f5e492d20 |
| v=spf1 include:spf.tutanota.de -all |
| Policy | Record (unserialized.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.tutanota.de -all |
| Policy | Record (_dmarc.unserialized.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; adkim=s |
| Check | Result |
|---|---|
| Status | 🔒 Enforce |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✓ Valid |
| Mode | enforce |
| Policy ID | 20190723 |
| max_age | 86400s |
| Policy MX | mail.tutanota.de |
| www | 188.40.18.34 2a01:4f8:d12:1ecd::2 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network unserialized.dk: 188.40.18.34 2a01:4f8:d12:1ecd::2 (AS24940) www.unserialized.dk: 188.40.18.34 2a01:4f8:d12:1ecd::2 (AS24940) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.tutanota.de | RSA · ~2048 bit |
| s2 | s2.domainkey.tutanota.de | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.tutanota.de | DANE-EE · Full cert · SHA-256 | D141F8F3A4AAC2E4D2677AAFCC723D8E… |
| 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 | 2404964762 |
| Primary NS (MNAME) | leah.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-25 11:23:03 | 1200ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-08 06:32:10 | 658ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-21 06:19:19 | 2663ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-04 00:42:59 | 796ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 23:02:29 | 809ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-22 13:30:15 | 1230ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-20 22:32:23 | 1126ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-27 05:53:40 shown | 1195ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 04:14:13 | 7690ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 17:15:15 | 1056ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 23:35:30 | 1475ms | 2 NS 1 A 1 MX | 🔓 Insecure |