fmazur.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 December 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.187.152.7 is hosted by Rage4 Networks Polska Spolka Z Ograniczona Odpowiedzialnoscia (AS198412) in Poland. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 185.187.152.7 | 3600s | rage4.infra.grebedoc.dev | AS198412 | Rage4 Networks Polska Spolka Z Ograniczona Odpowiedzialnoscia | 185.187.152.0/23 | 🇵🇱 Poland | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a05:b0c4:1::3 | 3600s | rage4.infra.grebedoc.dev | AS198412 | Rage4 Networks Polska Spolka Z Ograniczona Odpowiedzialnoscia | 2a05:b0c4:1:0:0:0:0:0/48 | 🇵🇱 Poland | — |
| TXT Record |
|---|
| protonmail-verification=83f2650ab3762c3a3f0df5f90c8764260d4b3e35 |
| v=spf1 include:_spf.protonmail.ch mx ~all |
| Policy | Record (fmazur.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch mx ~all |
| www | 46.30.211.38 (AS51468) (address records, no CNAME) |
| www vs bare domain | Different networks (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026092801 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2019-12-07 |
| Expires | 2026-12-31 (72d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 06:03:32 | 890ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-28 18:28:41 shown | 1481ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-26 18:03:48 | 712ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-13 22:59:13 | 2490ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-26 15:40:47 | 796ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-14 00:15:38 | 16949ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-15 05:21:29 | 1265ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-29 03:47:52 | 1690ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-27 06:08:24 | 915ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 10:16:45 | 953ms | 2 NS 1 A 2 MX | 🔒 Secure |