grejtech.dk is a .dk domain served by 2 nameservers (ns1.designrus.dk, ns2.designrus.dk). It was registered on 9 May 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 49.12.120.222 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 |
|---|---|---|---|---|---|---|---|
| 49.12.120.222 | 3600s | server4.designrus.dk | AS24940 | Hetzner Online GmbH | 49.12.0.0/15 | 🇩🇪 Germany | Falkenstein |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | grejtech.dk → 49.12.120.222 |
| 🔶 Autoconfig | discover.designrus.dk → 49.12.124.182 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:242:52a0::2 | 3600s | server4.designrus.dk | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | Falkenstein |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 1 | 1 | 443 | discover.designrus.dk |
| TXT Record |
|---|
| v=spf1 mx a include:_spf.designrus.dk include:_spf.google.com ~all |
| Policy | Record (grejtech.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx a include:_spf.designrus.dk include:_spf.google.com ~all |
| Policy | Record (_dmarc.grejtech.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:postmaster@grejtech.dk |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| www | 49.12.120.222 2a01:4f8:242:52a0::2 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network grejtech.dk: 49.12.120.222 2a01:4f8:242:52a0::2 (AS24940) www.grejtech.dk: 49.12.120.222 2a01:4f8:242:52a0::2 (AS24940) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 0 iterations · no salt · opt-out RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 4/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.grejtech.dk | grejtech.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026062502 |
| Primary NS (MNAME) | ns1.designrus.dk |
| Responsible (RNAME) | admin@designrus.dk |
| Refresh | 1200s |
| Retry | 540s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2023-05-09 |
| Expires | 2027-05-08 (203d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-10 17:03:04 | 693ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-10-05 04:10:30 | 734ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-09-30 03:47:36 | 1100ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-09-25 02:33:21 | 1076ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-09-20 03:02:42 | 3010ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-09-16 20:14:53 | 1178ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-09-10 06:14:41 | 982ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-09-06 23:24:48 | 1103ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-30 10:19:34 | 4260ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-27 13:25:41 | 1279ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-25 19:03:59 | 1758ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-20 07:15:38 | 10677ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-16 00:27:04 | 7416ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-10 03:18:08 | 1888ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-08-07 00:47:12 | 10156ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-30 06:48:33 | 5626ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-26 01:36:45 | 1617ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-20 09:59:54 | 1810ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-17 21:38:15 | 1768ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-11 02:02:30 | 9871ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-06 07:05:38 | 1355ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-03 07:56:22 | 3532ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-06-26 06:56:11 shown | 1260ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-06-22 12:07:55 | 1772ms | 2 NS 1 A 5 MX | 🔓 Insecure |
| 2026-06-17 09:59:32 | 2484ms | 2 NS 1 A 5 MX | 🔓 Insecure |