becker-christensen.dk is a .dk domain served by 4 nameservers (nsa1.schlundtech.de, nsb1.schlundtech.de, nsc1.schlundtech.de and 1 more). It was registered on 22 August 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 31.209.188.28 is hosted by Stadtwerke Flensburg GmbH (AS56737) in Germany. Mail is handled by gate.fla.de. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 31.209.188.28 | 600s | mailgate.ht-support.de | AS56737 | Stadtwerke Flensburg GmbH | 31.209.184.0/21 | 🇩🇪 Germany | Harrislee |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | gate.fla.de | 31.209.187.34 | gate.fla.de | AS56737 Stadtwerke Flensburg GmbH |
| TXT Record |
|---|
| v=spf1 mx ip4:31.17.176.170 ip4:31.209.187.35 a:gate.fla.de a:gate.flensborg-avis.de a:gate.fla.de a:kopano.ht-support.de a:mail.ht-support.net -all |
| Policy | Record (becker-christensen.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx ip4:31.17.176.170 ip4:31.209.187.35 a:gate.fla.de a:gate.flensborg-avis.de a:gate.fla.de a:kopano.ht-support.de a:mail.ht-support.net -all |
| Policy | Record (_dmarc.becker-christensen.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:dmarc@ht-support.net; ruf=mailto:dmarc@ht-support.net; fo=0:1 |
| www | 31.209.188.28 (AS56737) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 6/10 · 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 | 2020083002 |
| Primary NS (MNAME) | nsa1.schlundtech.de |
| Responsible (RNAME) | jhansen@ht-support.de |
| Refresh | 43200s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | InterNetX GmbH |
| Registered | 2017-08-22 |
| Expires | 2027-08-31 (311d) |
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 |
|---|---|---|---|
| 2026-10-09 14:09:19 | 909ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 21:42:17 | 1074ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 19:02:45 | 831ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 10:46:33 | 10100ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-04 20:30:57 | 12533ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-29 16:40:15 | 1027ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 23:28:45 shown | 1222ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 14:36:12 | 1003ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 06:05:11 | 1167ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 14:14:18 | 617ms | 4 NS 1 A 1 MX | 🔓 Insecure |