sivnet.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was registered on 15 August 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.178.66.206 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mail.sivnet.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 |
|---|---|---|---|---|---|---|---|
| 188.178.66.206 | — | mail.sivnet.dk | AS3292 | TDC Holding A/S | 188.176.0.0/13 | 🇩🇰 Denmark | Helsinge |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.sivnet.dk | 188.178.66.206 | mail.sivnet.dk | AS3292 TDC Holding A/S |
| www | 188.178.66.206 (AS3292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.sivnet.dk | DANE-EE · SPKI · SHA-256 | 566567AA8E8438A4169D3A94620683DF… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2024090754 |
| Primary NS (MNAME) | ns1.dns.services |
| Responsible (RNAME) | post@dns.services |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 7200s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2001-08-15 |
| Expires | 2027-09-30 (344d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-25 09:05:09 | 492ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-29 14:17:39 | 4740ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 05:50:03 | 493ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-10 18:37:31 | 761ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 13:53:22 | 9609ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 14:05:07 | 650ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 20:04:01 | 2155ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 19:02:47 shown | 3127ms | 3 NS 1 A 1 MX | 🔒 Secure |