cselydteknik.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 2 January 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.46 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.mailpod15-cph3.g1i.one.com, mx2.mailpod15-cph3.g1i.one.com and 2 more. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 46.30.215.46 | 3600s | webcluster2.webpod15-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 10800s | mx1.mailpod15-cph3.g1i.one.com | 104.37.35.36 | mx1.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx2.mailpod15-cph3.g1i.one.com | 104.37.35.37 | mx2.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx3.mailpod15-cph3.g1i.one.com | 104.37.35.38 | mx3.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| 10 | 10800s | mx4.mailpod15-cph3.g1i.one.com | 104.37.35.39 | mx4.mailpod15-cph3.g1i.one.com | AS51468 One.com A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10e:8077:eab9:b55a:46d0 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| TXT Record |
|---|
| v=spf1 include:_custspf.one.com -all |
| Policy | Record (cselydteknik.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_custspf.one.com -all |
| www | 46.30.215.46 2a02:2350:5:10e:8077:eab9:b55a:46d0 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network cselydteknik.dk: 46.30.215.46 2a02:2350:5:10e:8077:eab9:b55a:46d0 (AS51468) www.cselydteknik.dk: 46.30.215.46 2a02:2350:5:10e:8077:eab9:b55a:46d0 (AS51468) |
| 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.mx1.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | E54A7262DC6E3E0F06227A22B71D01DC… |
| SMTP _25._tcp.mx2.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | E54A7262DC6E3E0F06227A22B71D01DC… |
| SMTP _25._tcp.mx3.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | E54A7262DC6E3E0F06227A22B71D01DC… |
| SMTP _25._tcp.mx4.mailpod15-cph3.g1i.one.com | DANE-EE · SPKI · SHA-256 | E54A7262DC6E3E0F06227A22B71D01DC… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100501 |
| 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 | Punktum dk A/S (direct) |
| Registered | 2010-01-02 |
| Expires | 2027-01-31 (104d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-06 12:39:50 shown | 2021ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-10-03 11:06:51 | 722ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-30 17:03:40 | 617ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-29 18:18:52 | 620ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-27 23:57:55 | 761ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-09-10 08:55:09 | 1091ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-25 05:24:04 | 727ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-24 18:29:11 | 733ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-23 17:52:27 | 4899ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-08-07 10:43:36 | 915ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-28 17:18:30 | 876ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-27 07:16:32 | 28957ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-09 02:46:38 | 1036ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-07-03 15:01:32 | 13047ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-26 07:26:48 | 1048ms | 2 NS 1 A 4 MX | 🔒 Secure |
| 2026-06-16 23:05:34 | 661ms | 2 NS 1 A 4 MX | 🔒 Secure |