bolderslevbyg.dk is a .dk domain served by 2 nameservers (ns1.oneoffice.dk, ns2.oneoffice.dk). It was registered on 11 March 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.186.164.153 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by bolderslevbyg-dk.mail.protection.outlook.com. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.oneoffice.dk | — | — | — |
| ns2.oneoffice.dk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 5.186.164.153 | — | server7153.serverpark.dk | AS44869 | FIBIA P/S | 5.186.0.0/16 | 🇩🇰 Denmark | Frederiksberg |
| TXT Record |
|---|
| MS=ms85764165 |
| Policy | Record (_dmarc.bolderslevbyg.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100; rua=mailto:re+tzje1iymems@dmarc.postmarkapp.com; sp=none; aspf=r; |
| www | 5.186.164.153 (AS44869) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector2 | selector2-bolderslevbyg-dk._domainkey.bolderslevbygaps.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
| 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 | 2024061702 |
| Primary NS (MNAME) | ns1.oneoffice.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2013-03-11 |
| Expires | 2027-03-31 (165d) |
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 |
|---|---|---|---|
| 2026-10-07 18:49:54 | 1890ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 04:58:25 | 796ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 15:34:53 | 1088ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 11:42:56 | 5282ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 06:33:08 | 1167ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 17:20:19 | 1147ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 15:35:40 shown | 770ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 15:35:21 | 6067ms | 2 NS 1 A 1 MX | 🔓 Insecure |