tonder.dk is a .dk domain served by 2 nameservers (ns-auth03.kmd.dk, ns-auth04.kmd.dk). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.95.241.121 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns-auth03.kmd.dk | 131.165.64.5 | ns-auth03.kmd.dk | AS6834 KMD A/S |
| ns-auth04.kmd.dk | 131.165.4.5 | ns-auth04.kmd.dk | AS6834 KMD A/S |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 81.95.241.121 | 3600s | — | AS48854 | team.blue Denmark A/S | 81.95.240.0/20 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 95.154.60.11 |
| 🔶 Autoconfig | http.4344to.oplagt.dk → 81.95.241.121 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | autodiscover.toender.dk |
| _sipfederationtls._tcp | 0 | 0 | 5061 | sip.toender.dk |
| TXT Record |
|---|
| MS=ms40161610 |
| v=spf1 include:_spf68390.spf-protect.dk -all |
| Policy | Record (tonder.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf68390.spf-protect.dk -all |
| Policy | Record (_dmarc.tonder.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:62ff5b48bd805@dmarc.centerasecurity.com; ruf=mailto:dmarc@toender.dk; fo=1 |
| www CNAME | http.4344to.oplagt.dk (all on oplagt.dk) → 81.95.241.121 (AS48854) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 10 iterations · 16-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.tonder.dk | http.4344to.oplagt.dk |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 517 |
| Primary NS (MNAME) | ns-auth03.kmd.dk |
| Responsible (RNAME) | dnsadmin@kmd.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 43200s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1997-01-31 |
| Expires | 2027-03-31 (161d) |
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 |
|---|---|---|---|
| 2026-10-21 07:31:56 shown | 1789ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-20 07:01:15 | 1755ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-19 04:29:23 | 2606ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-18 03:42:44 | 1203ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-17 02:33:28 | 2674ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-16 01:35:23 | 2128ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-15 01:19:42 | 697ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-14 01:16:05 | 3472ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-12 23:21:42 | 2886ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-11 18:10:08 | 1370ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-10 17:02:02 | 2842ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-09 15:55:02 | 1530ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-08 11:54:31 | 4581ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-07 11:31:34 | 1545ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-06 11:05:23 | 4984ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-05 10:00:36 | 2918ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-04 09:50:16 | 1050ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-03 09:49:25 | 3778ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-02 09:42:59 | 1178ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-01 09:40:28 | 2453ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-30 09:29:14 | 910ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-29 18:15:29 | 1374ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-28 18:07:37 | 1283ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-27 17:51:56 | 1491ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-26 17:40:12 | 945ms | 2 NS 1 A 3 MX | 🔓 Insecure |