by-k.dk is a .dk domain served by 2 nameservers (ns1.provi.dk, ns2.provi.dk). It was registered on 4 May 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.4.84.82 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by by-k.dk. The zone is not DNSSEC-signed, publishes a 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.provi.dk | — | — | — |
| ns2.provi.dk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.4.84.82 | — | server2.provi.dk | AS24940 | Hetzner Online GmbH | 46.4.0.0/16 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | — | by-k.dk | 46.4.84.82 | server2.provi.dk | AS24940 Hetzner Online GmbH |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:141:61de::1 | — | — | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | Falkenstein |
| TXT Record |
|---|
| v=spf1 ip4:46.4.84.82 include:spf.provi.dk +a +mx ~all |
| Policy | Record (by-k.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:46.4.84.82 include:spf.provi.dk +a +mx ~all |
| Policy | Record (_dmarc.by-k.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | by-k.dk (all on by-k.dk) |
| www vs bare domain | Same network by-k.dk: 46.4.84.82 2a01:4f8:141:61de::1 (AS24940) www.by-k.dk: 46.4.84.82 2a01:4f8:141:61de::1 (AS24940) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~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.
DNS lookups: 5/10 · policy: ~all
No problems found| 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 | 2026050301 |
| Primary NS (MNAME) | ns1.provi.dk |
| Responsible (RNAME) | server-admin@azehosting.net |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | 1API GmbH |
| Registered | 2023-05-04 |
| Expires | 2027-05-03 (194d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 09:17:22 | 679ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-14 04:41:37 | 18961ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-09 22:56:42 | 4794ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-28 08:15:01 | 16151ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-03 20:03:36 | 1305ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-01 23:46:33 | 1593ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 18:16:37 | 3304ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 18:16:02 | 1487ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 18:01:37 shown | 677ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 18:01:12 | 705ms | 2 NS 1 A 1 MX | 🔓 Insecure |