byjacobsen.dk is a .dk domain served by 3 nameservers (ns.second-ns.com, ns1.your-server.de, ns3.second-ns.de). It was registered on 28 September 2026 (WHOIS) and first appeared in the .dk zone on 29 September 2026. Its website address 88.198.219.246 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by www4.your-server.de. 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 |
|---|---|---|---|---|---|---|---|
| 88.198.219.246 | 7200s | www4.your-server.de | AS24940 | Hetzner Online GmbH | 88.198.0.0/16 | 🇩🇪 Germany | Nuremberg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 7200s | www4.your-server.de | 2a01:4f8:d0a:27bd::2 88.198.219.246 |
www4.your-server.de www4.your-server.de |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| Service | CNAME / IP |
|---|---|
| 🔶 Autoconfig | mail.your-server.de → 78.46.5.205 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:d0a:27bd::2 | 7200s | www4.your-server.de | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | — |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 100 | 443 | mail.your-server.de |
| _imaps._tcp | 0 | 100 | 993 | mail.your-server.de |
| TXT Record |
|---|
| v=spf1 +a +mx ?all |
| Policy | Record (byjacobsen.dk) |
|---|---|
| ?all (neutral) | v=spf1 +a +mx ?all |
| www | 88.198.219.246 2a01:4f8:d0a:27bd::2 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network byjacobsen.dk: 88.198.219.246 2a01:4f8:d0a:27bd::2 (AS24940) www.byjacobsen.dk: 88.198.219.246 2a01:4f8:d0a:27bd::2 (AS24940) |
| Wildcard | No |
DNS lookups: 2/10 · policy: ?all
| 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 | 2026092500 |
| Primary NS (MNAME) | ns1.your-server.de |
| Responsible (RNAME) | postmaster@your-server.de |
| Refresh | 86400s |
| Retry | 10800s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | 1API GmbH |
| Registered | 2026-09-28 |
| Expires | 2027-09-27 (337d) |
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 |
|---|---|---|---|
| 2026-10-21 17:25:34 | 757ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-19 10:18:46 | 1290ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-10-18 09:00:57 | 1386ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-10-17 08:03:42 | 803ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-10-14 04:37:49 | 1376ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-30 09:06:09 shown | 2161ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 08:49:51 | 2498ms | 1 NS 0 A 0 MX | ❓ Unknown |