jacobsens-rengoering.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 21 May 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.20.205.40 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by smtp.google.com. The zone is DNSSEC-signed but currently fails validation, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.20.205.40 | 3600s | linux366.unoeuro.com | AS48854 | team.blue Denmark A/S | 185.20.204.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.20.205.40 |
| 🔶 Autoconfig | 185.20.205.40 |
| TXT Record |
|---|
| google-site-verification=WBVNR6t-e6opzobQNcM1k-r-jOvIIG47T-gFF_nPxOk |
| www | 185.20.205.40 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network jacobsens-rengoering.dk: 185.20.205.40 (AS48854) www.jacobsens-rengoering.dk: 185.20.205.40 (AS48854) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'jacobsens-rengoering.dk/DS/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2025091203 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2022-05-21 |
| Expires | 2027-05-20 (205d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 23:19:29 | 453ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 15:37:13 | 473ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 15:26:26 | 553ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 08:17:26 | 614ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 14:56:28 | 589ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-04 16:42:18 | 1274ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 08:56:02 shown | 942ms | 4 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-17 11:53:43 | 641ms | 4 NS 1 A 1 MX | 🔒 Secure |