helitronic.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 4 March 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.23.255.184 is hosted by Fiberby ApS (AS42541) in Denmark. Mail is handled by helitronic.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 89.23.255.184 | 43200s | 89-23-255-184.ip4.fiberby.net | AS42541 | Fiberby ApS | 89.23.224.0/19 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | helitronic.dk | 89.23.255.184 | 89-23-255-184.ip4.fiberby.net | AS42541 Fiberby ApS |
| TXT Record |
|---|
| 89-23-255-184.ip4.fiberby.net |
| v=spf1 mx -all |
| Policy | Record (helitronic.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.helitronic.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:admin@helitronic.dk; ruf=mailto:admin@helitronic.dk; fo=1; sp=quarantine; adkim=r; aspf=r |
| www | 89.23.255.184 (AS42541) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | — | RSA · ~1024 bit below 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: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061401 |
| 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 | 2014-03-04 |
| Expires | 2031-03-31 (1620d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-20 23:10:45 | 1519ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-15 06:11:56 | 762ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 16:41:03 | 530ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 20:14:39 | 439ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 19:35:00 | 432ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 03:30:16 | 4566ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 09:47:37 | 871ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-08 07:53:09 | 599ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-03 20:57:00 | 621ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-02 09:21:12 | 553ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 11:56:47 | 1062ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-15 00:53:57 | 3411ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-15 10:47:12 | 918ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-13 13:15:45 | 4640ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-30 14:03:23 | 545ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 23:01:33 shown | 996ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 00:15:26 | 1184ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 11:14:39 | 512ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 11:12:37 | 643ms | 2 NS 1 A 1 MX | 🔒 Secure |