erlau.dk is a .dk domain served by 2 nameservers (cesar.ns.cloudflare.com, malavika.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.41.248 is hosted by Cloudflare, Inc. (AS13335). 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 |
|---|---|---|---|---|---|---|---|
| 104.21.41.248 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.167.212 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | 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 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:29f8 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:a7d4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.41.248,172.67.167.212 ech=AEX+DQBBjQAgACDLcc0IVU47ovwQ8f0u0keIUrvqMVxNDz7J9ttgklC2AQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:29f8,2606:4700:3035::ac43:a7d4 |
| TXT Record |
|---|
| MS=ms69077110 |
| t-verify=b8c5e566b4fb97d8cf5d74151e0948cf |
| v=spf1 include:spf.tutanota.de -all |
| Policy | Record (erlau.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.tutanota.de -all |
| Policy | Record (_dmarc.erlau.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 | NXDOMAIN |
| www vs bare domain | www does not resolve erlau.dk: 104.21.41.248 172.67.167.212 2606:4700:3032::6815:29f8 2606:4700:3032::ac43:a7d4 (AS13335) (all like this)www.erlau.dk: no address |
| Wildcard | No |
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 | 2406918796 |
| Primary NS (MNAME) | cesar.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 06:24:02 | 2226ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-22 12:53:56 | 1668ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-06 03:40:37 | 1208ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 04:39:39 | 1800ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-24 08:52:35 | 2540ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-22 05:16:24 | 5236ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-17 20:40:32 | 7141ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-01 16:56:30 | 3108ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 01:44:17 | 1432ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 00:47:09 | 981ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-19 23:06:55 shown | 770ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 08:10:25 | 740ms | 2 NS 2 A 1 MX | 🔓 Insecure |