fnidder.dk is a .dk domain served by 3 nameservers (ns2.droso.dk, ns3b.droso.dk, ns4.droso.dk). It was registered on 13 November 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.36.36.225 is hosted by SecurityNet.cz s.r.o. (AS42422) in Czechia. Mail is handled by mail.droso.net. 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 |
|---|---|---|---|---|---|---|---|
| 46.36.36.225 | — | proxy.droso.cz | AS42422 | SecurityNet.cz s.r.o. | 46.36.36.0/22 | 🇨🇿 Czechia | Řetová |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.droso.net | 176.102.65.78 2a02:25b0:aaaa:ee02::25 |
mail.droso.net mail.droso.net |
AS42422 SecurityNet.cz s.r.o. AS42422 SecurityNet.cz s.r.o. |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:25b0:aaaa:35d9::abcd | — | proxy.droso.cz | AS42422 | SecurityNet.cz s.r.o. | 2a02:25b0:aaaa:0:0:0:0:0/48 | 🇨🇿 Czechia | — |
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (fnidder.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.fnidder.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www CNAME | proxy.droso.cz (all on droso.cz) |
| www vs bare domain | Same network fnidder.dk: 46.36.36.225 2a02:25b0:aaaa:35d9::abcd (AS42422) www.fnidder.dk: 46.36.36.225 2a02:25b0:aaaa:35d9::abcd (AS42422) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.droso.net | DANE-EE · SPKI · SHA-256 | D437D199E64B954A97E604A23E8D9401… |
| HTTPS _443._tcp.fnidder.dk | DANE-EE · SPKI · SHA-256 | 95A64ECA4DC00E1F9172BA9E0A0FCC49… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2012021639 |
| Primary NS (MNAME) | ns3b.droso.dk |
| Responsible (RNAME) | hostmaster@droso.net |
| Refresh | 14400s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 900s |
| Field | Value |
|---|---|
| Registrar | Domeneshop AS |
| Registered | 2000-11-13 |
| Expires | 2026-12-31 (75d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 08:11:09 | 2006ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-06 17:08:10 | 527ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-04 14:42:46 | 924ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 13:40:50 | 1190ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-20 02:26:59 | 1634ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-13 15:24:07 | 1243ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-06 14:30:22 | 2082ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-04 10:40:04 | 2531ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 11:19:53 | 1860ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-21 04:49:05 | 9942ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-15 17:41:05 | 2624ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-09 01:41:56 | 1300ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-03 07:55:59 | 8951ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 15:52:56 | 1147ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-14 19:33:17 | 1247ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-08 13:44:26 | 17395ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-06 09:22:02 | 3728ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 07:56:31 | 1752ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 15:56:50 | 2618ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 23:03:56 | 4918ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:06:18 shown | 1393ms | 3 NS 1 A 1 MX | 🔒 Secure |