dtftennis.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 24 February 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.158 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mail.dtftennis.dk. 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 |
|---|---|---|---|---|---|---|---|
| 185.21.40.158 | 3600s | vm1032.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | mail.dtftennis.dk | 188.179.99.110 | mail.tennis.dk | AS3292 TDC Holding A/S |
| www CNAME | dtftennis.dk (all on dtftennis.dk) → 185.21.40.158 (AS48854) |
| 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 | 2026061101 |
| 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 | 1999-02-24 |
| Expires | 2027-03-31 (159d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 21:39:49 | 610ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 08:51:10 | 381ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-13 08:47:26 | 630ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-05 05:28:34 | 540ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 01:55:31 | 948ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-12 19:29:25 | 701ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-08 09:05:59 | 828ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-04 07:16:46 | 13964ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-17 23:33:18 | 781ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-16 17:54:37 | 699ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 01:51:16 | 670ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 23:14:58 | 1179ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 15:49:07 shown | 2910ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 04:50:30 | 502ms | 2 NS 1 A 1 MX | 🔒 Secure |