matematikrevy.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 9 July 2026 (WHOIS) and first appeared in the .dk zone on 10 July 2026. Its website address 188.245.30.36 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mx1.forwardemail.net, mx2.forwardemail.net. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 188.245.30.36 | 600s | static.36.30.245.188.clients.your-server.de | AS24940 | Hetzner Online GmbH | 188.245.0.0/16 | 🇩🇪 Germany | Nuremberg |
| TXT Record |
|---|
| forward-email=carl@jarner.dk |
| www CNAME | matematikrevy.dk (all on matematikrevy.dk) → 188.245.30.36 (AS24940) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.forwardemail.net | DANE-EE · SPKI · SHA-256 | 321F694EAD3A2E733D857FD7E79D811F… |
| SMTP _25._tcp.mx1.forwardemail.net | DANE-EE · SPKI · SHA-256 | 5E81DA1AF16DF20B13E667AD6D9C2B65… |
| SMTP _25._tcp.mx2.forwardemail.net | DANE-EE · SPKI · SHA-256 | 321F694EAD3A2E733D857FD7E79D811F… |
| SMTP _25._tcp.mx2.forwardemail.net | DANE-EE · SPKI · SHA-256 | 5E81DA1AF16DF20B13E667AD6D9C2B65… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101901 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2026-07-09 |
| Expires | 2027-07-08 (254d) |
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 |
|---|---|
| jamesband.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-21 05:02:49 shown | 770ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-12 17:43:41 | 630ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-09 09:40:16 | 973ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-04 07:11:26 | 995ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-03 07:10:08 | 3378ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-26 05:58:30 | 648ms | 3 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-25 05:34:23 | 546ms | 3 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-17 06:58:18 | 650ms | 3 NS 4 A 1 MX | 🔒 Secure |
| 2026-07-12 02:56:35 | 8720ms | 3 NS 4 A 1 MX | 🔒 Secure |
| 2026-07-10 08:33:49 | 944ms | 3 NS 4 A 1 MX | 🔒 Secure |