business-developers.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 June 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.66.124.104 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by web4.redhost.dk. The zone is DNSSEC-signed and validates, has no 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 77.66.124.104 | — | web4.redhost.dk | AS47292 | Sentia Denmark A/S | 77.66.124.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | web4.redhost.dk | 77.66.124.104 | web4.redhost.dk | AS47292 Sentia Denmark A/S |
| TXT Record |
|---|
| v=spf1 include:web4.redhost.dk -all |
| Policy | Record (business-developers.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:web4.redhost.dk -all |
DNS lookups: 3/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026032401 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2004-06-07 |
| Expires | 2027-06-30 (245d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 12:02:29 | 3905ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-09-25 11:11:20 | 9981ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-09-03 15:03:12 | 29148ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-24 03:10:59 | 4380ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-23 01:34:53 | 1989ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-22 01:23:04 | 8835ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-21 01:16:32 | 5832ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-19 22:34:44 | 1345ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-18 22:00:52 | 1884ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-17 11:28:14 | 36195ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-16 10:28:24 | 31318ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-15 03:41:45 | 5018ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-14 00:36:48 | 8704ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-12 17:09:50 | 1379ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-11 11:16:52 | 2935ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-10 10:27:36 | 5280ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-08 23:20:23 | 894ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-02 21:01:58 | 848ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-08-01 17:52:57 | 1019ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-31 10:36:01 | 907ms | 2 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-06-30 18:45:01 | 1480ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-19 23:31:19 | 378ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 17:50:04 shown | 551ms | 2 NS 1 A 1 MX | 🔒 Secure |