matematikninja.dk is a .dk domain served by 2 nameservers (horizon.dns-parking.com, orbit.dns-parking.com). It was registered on 3 December 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.hostinger.com, mx2.hostinger.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 |
|---|---|---|---|---|---|---|---|
| 217.65.156.16 | 60s | — | AS47583 | — | — | 🇩🇪 Germany | — |
| 217.65.159.201 | 60s | — | AS47583 | — | — | 🇩🇪 Germany | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 5 | 14400s | mx1.hostinger.com | 172.65.182.103 2606:4700:90:0:c1f8:f874:2386:b61f |
— — |
AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. |
| 10 | 14400s | mx2.hostinger.com | 172.65.182.103 2606:4700:90:0:c1f8:f874:2386:b61f |
— — |
AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.mail.hostinger.com → 34.120.251.119 |
| 🔶 Autoconfig | autoconfig.mail.hostinger.com → 34.120.251.119 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:4780:7f:6c5a:6603:6b41:a23a:6b66 | 60s | — | AS47583 | — | — | 🇨🇾 Cyprus | — |
| 2a02:4780:80:3c5a:7b7:f1c6:dedb:fcb4 | 60s | — | AS47583 | — | — | 🇨🇾 Cyprus | — |
| TXT Record |
|---|
| v=spf1 include:_spf.mail.hostinger.com ~all |
| Policy | Record (matematikninja.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mail.hostinger.com ~all |
| Policy | Record (_dmarc.matematikninja.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com |
| 0 | issue | globalsign.com |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog |
| 0 | issue | sectigo.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com |
| 0 | issuewild | globalsign.com |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog |
| 0 | issuewild | sectigo.com |
| www CNAME | www.matematikninja.dk.cdn.hstgr.net (all on hstgr.net) |
| www vs bare domain | Same network matematikninja.dk: 2.57.91.190 84.32.84.89 2a02:4780:84:3ad0:e701:f92a:2fbe:b263 2a02:4780:84:5a92:9a71:c949:9b21:8d46 (AS47583) www.matematikninja.dk: 84.32.84.158 88.222.222.241 2a02:4780:84:3b3c:d6a0:2a2:2719:c52d 2a02:4780:84:953:3a:3b52:5faa:7719 (AS47583) |
| Wildcard | No |
DNS lookups: 3/10 · policy: ~all
No problems found| 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 | 2026082701 |
| Primary NS (MNAME) | orbit.dns-parking.com |
| Responsible (RNAME) | dns@hostinger.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2024-12-03 |
| Expires | 2026-12-02 (39d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| derlich.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 16:08:34 | 1742ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-22 12:27:20 | 2671ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-18 02:41:24 | 2641ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-16 02:00:40 | 2562ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-08 12:02:59 | 1707ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-01 07:07:18 | 3857ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-24 04:40:47 | 1059ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-19 22:43:56 | 1728ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-14 00:40:30 | 1229ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-06 23:27:05 | 1383ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-27 18:12:36 shown | 993ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-20 03:07:08 | 9551ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-14 03:09:20 | 3840ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-06 11:59:08 | 1319ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-02 17:52:52 | 1009ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-23 06:40:05 | 10193ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-16 10:00:41 | 2118ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-10 13:48:20 | 1370ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-03 20:55:44 | 2064ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-26 03:55:14 | 1239ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-18 07:30:39 | 4284ms | 2 NS 2 A 2 MX | 🔓 Insecure |