crystallab.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 19 January 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.9.56.92 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by crystallab-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 5.9.56.92 | 600s | static.92.56.9.5.clients.your-server.de | AS24940 | Hetzner Online GmbH | 5.9.0.0/16 | 🇩🇪 Germany | Falkenstein |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.152 |
| TXT Record |
|---|
| ca3-5ebe834e77f2487abc4b69e5c9304824 |
| facebook-domain-verification=ey83hosv468gxqw8j3pm3szohds055 |
| google-site-verification=jsJL7M89Xf3z7ZofEc6NoMGnk_Qv8w2bXNYZmsO4vyM |
| google-site-verification=VQW4u_sULx4Dg5cJGyxPx8Tz4KgnuzYS__Xn9bUYuAI |
| klaviyo-site-verification=XjdwT6 |
| mandrill_verify.-QV0ciW11DiovZ86nL51dQ |
| MS=ms91394435 |
| v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:relay.kinstamailservice.com -all |
| Policy | Record (crystallab.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:relay.kinstamailservice.com -all |
| Policy | Record (_dmarc.crystallab.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; ruf=mailto:mail@crystallab.dk |
DNS lookups: 3/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.crystallab.dk | crystallab.dk.kinstavalidation.app |
| TXT | crystallab.dk.kinstavalidation.app | G3foQeQ7xjM05HXukIqYfZVdLR7IoA6bFiIl_Bf6444 |
| TXT | crystallab.dk.kinstavalidation.app | V4jtEw-MfTBcTeqOhTAW4ke16NLxiFoyQqy9G-hQ5Ic |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100200 |
| 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 | 2013-01-19 |
| Expires | 2028-01-31 (466d) |
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 |
|---|---|---|---|
| 2026-10-12 22:29:21 | 735ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 18:06:07 shown | 1087ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 07:21:34 | 1539ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 07:13:57 | 914ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 14:30:50 | 1380ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 14:09:33 | 1163ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-22 17:19:26 | 906ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-01 03:21:33 | 10556ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 11:17:16 | 1222ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 03:56:42 | 963ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 23:24:01 | 65535ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 23:05:54 | 769ms | 3 NS 1 A 1 MX | 🔒 Secure |