onlinetdc.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 3 June 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.249.40.66 is hosted by TDC Holding A/S (AS3292) in Denmark. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 195.249.40.66 | 3600s | mail.mailfilter.dk | AS3292 | TDC Holding A/S | 195.249.0.0/16 | 🇩🇰 Denmark | Odense |
| TXT Record |
|---|
| "v=spf1 include:_spf.mailfilter.dk -all" |
| Policy | Record (_dmarc.onlinetdc.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; fo=1; rua=mailto:cv1zdpyr@ag.eu.dmarcian.com; ruf=mailto:cv1zdpyr@fr.eu.dmarcian.com; |
| www | Exists, no address |
| www vs bare domain | www does not resolve (all like this) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| 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 | 2026072118 |
| Primary NS (MNAME) | ns1.eurodns.com |
| Responsible (RNAME) | hostmaster@eurodns.com |
| Refresh | 43200s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 2002-06-03 |
| Expires | 2027-06-30 (252d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 06:38:25 shown | 716ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-15 05:17:13 | 932ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-14 04:45:25 | 686ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-02 13:39:30 | 526ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-29 15:59:59 | 731ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-27 03:16:46 | 640ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-26 03:14:35 | 763ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-14 22:29:37 | 649ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-09 02:53:40 | 1133ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-21 03:39:16 | 798ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-20 03:22:44 | 2342ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-19 02:51:47 | 8756ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-02 08:29:12 | 726ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-21 15:13:10 | 8576ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-15 07:35:05 | 974ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-28 01:28:47 | 733ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-26 00:11:36 | 689ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-25 07:37:11 | 842ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-20 23:34:26 | 675ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-20 21:29:10 | 1114ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:02:49 | 1839ms | 4 NS 1 A 0 MX | 🔒 Secure |