bjertrupchristensen.dk is a .dk domain served by 2 nameservers (james.ns.cloudflare.com, sureena.ns.cloudflare.com). It was registered on 21 March 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.23.254.107 is hosted by Fiberby ApS (AS42541) in Denmark. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 89.23.254.107 | 300s | 89-23-254-107.ip4.fiberby.net | AS42541 | Fiberby ApS | 89.23.224.0/19 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | bjertrupchristensen.dk → 89.23.254.107 |
| 🔶 Autoconfig | bjertrupchristensen.dk → 89.23.254.107 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:251:5846::2 | 300s | — | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | Falkenstein |
| TXT Record |
|---|
| v=spf1 +a +mx +ip4:157.90.34.121 include:spf.azehosting.net ~all |
| Policy | Record (bjertrupchristensen.dk) |
|---|---|
| ~all (soft fail) | v=spf1 +a +mx +ip4:157.90.34.121 include:spf.azehosting.net ~all |
| www CNAME | bjertrupchristensen.dk (all on bjertrupchristensen.dk) |
| www vs bare domain | Same network bjertrupchristensen.dk: 89.23.254.107 2a01:4f8:251:5846::2 (AS24940 AS42541) www.bjertrupchristensen.dk: 89.23.254.107 2a01:4f8:251:5846::2 (AS24940 AS42541) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 4/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.bjertrupchristensen.dk | 7a5TdxRIX4uY-iKAW17RJiaygHG-kXNBS_ArVvmAkWg |
| TXT | _acme-challenge.bjertrupchristensen.dk | 7Ni-hHl8AY-8IAY-kmYVY3mhMvhcPGN_6Aukvt3Qr0k |
| TXT | _acme-challenge.bjertrupchristensen.dk | A2Q8c9bmIrZSMg5VzmrOSYokDIANq_Gd-NJrULD6K7M |
| TXT | _acme-challenge.bjertrupchristensen.dk | aXstzPMDy6Ms68jTxUeDDeLArE-FCcQDGCoRybkDeIo |
| TXT | _acme-challenge.bjertrupchristensen.dk | E4hp0HFOn6Iq_VjwxFxzwvGcKU22_kRn9iHKZz0t5C8 |
| 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 | 2413433383 |
| Primary NS (MNAME) | james.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2009-03-21 |
| Expires | 2027-03-31 (159d) |
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 10:51:01 | 1630ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-24 04:43:59 | 949ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-10 16:43:32 | 1770ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-29 23:39:37 shown | 2029ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-23 01:22:56 | 1056ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-07-15 19:55:20 | 4122ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-28 23:03:32 | 983ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-28 09:57:34 | 985ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-16 14:43:08 | 2410ms | 2 NS 1 A 0 MX | 🔓 Insecure |