cecilia25.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 8 May 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 83.89.251.156 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by .. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 83.89.251.156 | 600s | 0x5359fb9c.static.cust.fastspeed.dk | AS3292 | TDC Holding A/S | 83.89.0.0/16 | 🇩🇰 Denmark | Skovlunde |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| www | 83.89.251.156 (AS3292) (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 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081201 |
| 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 | 2026-05-08 |
| Expires | 2027-05-07 (199d) |
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 |
|---|---|
| its3-indeklima.dk | ONE.COM A/S |
| jensmartinknudsen.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 13:34:42 | 559ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-12 21:26:32 | 563ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 04:03:33 | 478ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-14 01:37:09 shown | 2594ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-12 01:18:26 | 4701ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-14 02:52:20 | 638ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 15:49:52 | 1284ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 21:59:15 | 695ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 19:56:21 | 429ms | 2 NS 1 A 0 MX | 🔒 Secure |