hartmannbyg.dk is a .dk domain served by 5 nameservers (ns1pri.webhosting.dk, ns2.mywebtonet.com, ns2.webhosting.dk and 2 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.15 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by webhotel24.webhosting.dk. The zone is DNSSEC-signed but currently fails validation, 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 |
|---|---|---|---|---|---|---|---|
| 185.21.40.15 | 600s | vm1292.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | webhotel24.webhosting.dk | 157.250.160.44 | webhotel24.webhosting.dk | AS3342 Cibicom A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.21.40.15 |
| 🔶 Autoconfig | 185.21.40.15 |
| TXT Record |
|---|
| v=spf1 mx a include:web.shared.mysmtp.com include:spf.webhosting.dk ~all |
| Policy | Record (hartmannbyg.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx a include:web.shared.mysmtp.com include:spf.webhosting.dk ~all |
| Policy | Record (_dmarc.hartmannbyg.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1;p=none; |
| www | 185.21.40.15 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 7/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.webhotel24.webhosting.dk | DANE-EE · SPKI · SHA-256 | FA4EFC305AA17A4FEEE8B29B2DAA8847… |
| SMTP _25._tcp.webhotel24.webhosting.dk | DANE-TA · SPKI · SHA-256 | FA4EFC305AA17A4FEEE8B29B2DAA8847… |
| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'hartmannbyg.dk/DS/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2017011646 |
| Primary NS (MNAME) | ns1pri.webhosting.dk |
| Responsible (RNAME) | hostmaster@webhosting.dk |
| Refresh | 21600s |
| Retry | 3600s |
| Expire | 14515200s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 02:48:24 | 747ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 15:36:46 | 636ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-08 10:35:51 | 9514ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 17:20:53 | 1080ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 22:56:41 | 806ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-27 17:25:16 | 3733ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 20:53:51 | 1408ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 19:20:16 shown | 3300ms | 5 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-22 21:44:23 | 981ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 13:15:04 | 561ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:52:01 | 627ms | 5 NS 1 A 1 MX | 🔒 Secure |