janosch.dk is a .dk domain served by 2 nameservers (aria.ns.cloudflare.com, sid.ns.cloudflare.com). It was registered on 16 September 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.28.115 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.porsager.com. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.28.115 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.145.228 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.porsager.com | 2a01:4f8:c0c:345f::2 94.130.106.211 |
mail.porsager.com mail.porsager.com |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | mail.porsager.com → 94.130.106.211 |
| 🔶 Autoconfig | mail.porsager.com → 94.130.106.211 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:91e4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:1c73 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.28.115,172.67.145.228 ech=AEX+DQBB1gAgACB9wMDJwivNDs9bAwkeqqWvPgvHbVqBqUv4AmtyPhyPcAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:91e4,2606:4700:3037::6815:1c73 |
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (janosch.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.janosch.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:dmarc@janosch.dk; ruf=mailto:dmarc@janosch.dk; |
| www | 104.21.28.115 172.67.145.228 2606:4700:3030::ac43:91e4 2606:4700:3033::6815:1c73 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| dkim | — | 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| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.janosch.dk | janosch.dk |
| 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 | 2407131098 |
| Primary NS (MNAME) | aria.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2003-09-16 |
| Expires | 2027-09-30 (346d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 21:08:21 | 929ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-07 21:01:27 | 624ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-04 11:30:42 | 769ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-03 19:24:23 | 911ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-01 19:19:35 | 1338ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-29 19:13:43 | 933ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-28 19:08:05 | 1070ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 18:43:22 | 943ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-16 08:35:26 | 2172ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-09 06:57:21 | 1109ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-05 23:06:14 | 2457ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-02 01:56:13 | 2636ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-10 21:25:25 | 3674ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-28 03:26:54 | 1064ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 22:30:44 | 1002ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-21 23:57:23 | 1169ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 22:43:56 shown | 2073ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 22:48:20 | 938ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 15:59:47 | 1212ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:56:57 | 2689ms | 2 NS 2 A 1 MX | 🔓 Insecure |