blivsikker.dk is a .dk domain served by 2 nameservers (jason.ns.cloudflare.com, mia.ns.cloudflare.com). It was registered on 12 January 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 49.12.191.204 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by .. The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 49.12.191.204 | 300s | bravo.nikkasystems.net | AS24940 | Hetzner Online GmbH | 49.12.0.0/15 | 🇩🇪 Germany | Falkenstein |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:c012:a53a::1 | 300s | bravo.nikkasystems.net | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | Falkenstein |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (blivsikker.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.blivsikker.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; rua=mailto:nikkasystems-d@dmarc.report-uri.com; ruf=mailto:postmaster@nikkasystems.com; fo=0; rf=afrf; ri=86400 |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:security@nikkasystems.com |
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| www CNAME | blivsikker.dk (all on blivsikker.dk) |
| www vs bare domain | Same network blivsikker.dk: 49.12.191.204 2a01:4f8:c012:a53a::1 (AS24940) www.blivsikker.dk: 49.12.191.204 2a01:4f8:c012:a53a::1 (AS24940) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 0/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.blivsikker.dk | 1C7mLeaYE9yBqvQhYBX2-vowAzHRf4XOBGxSr0Wtxmo |
| TXT | _acme-challenge.blivsikker.dk | 1fReEhk2ErGMmUOfuRwCm7itiUFuyKhbwxjv8FUSIq8 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2415697714 |
| Primary NS (MNAME) | jason.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ODERLAND Webbhotell AB |
| Registered | 2018-01-12 |
| Expires | 2027-01-31 (100d) |
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).
| Domain | Registrar |
|---|---|
| nikkasystems.dk | ODERLAND Webbhotell AB |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-19 01:04:39 | 589ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 13:53:18 | 1089ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 13:20:07 | 1413ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 13:15:46 shown | 1488ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-02 19:40:15 | 1526ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-07 23:44:31 | 1205ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-30 15:16:44 | 2378ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-27 23:39:48 | 1924ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-15 03:02:32 | 4437ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 00:59:25 | 1319ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 17:51:01 | 1414ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 14:50:14 | 615ms | 2 NS 1 A 0 MX | 🔒 Secure |