listserver.dk is a .dk domain served by 4 nameservers (ns1.quickdns.dk, ns2.quickdns.dk, ns3.quickdns.dk and 1 more). It was registered on 30 July 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by ungoliant.spliph.net. 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | ungoliant.spliph.net | 90.185.28.145 | polyphemus.spliph.net | AS203953 Hiper A/S |
| TXT Record |
|---|
| v=spf1 mx a ip4:90.185.28.145/32 -all |
| Policy | Record (listserver.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a ip4:90.185.28.145/32 -all |
| Policy | Record (_dmarc.listserver.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:angus_pmg@spliph.net; ruf=mailto:angus@spliph.net; fo=0; adkim=s; aspf=s; ri=21600 |
| Check | Result |
|---|---|
| Status | ⚠️ Invalid |
| TXT record (_mta-sts) | ✓ Found |
| HTTPS policy | ✗ Missing / invalid |
| Policy ID | 2026082301 |
| Policy MX | — |
| Status | Report address (rua) |
|---|---|
| ✓ Enabled | mailto:angus_pmg@spliph.net |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves listserver.dk: no address www.listserver.dk: no address |
| Wildcard | No |
| 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.
DNS lookups: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026082503 |
| Primary NS (MNAME) | ns1.quickdns.dk |
| Responsible (RNAME) | hostmaster@quickdns.dk |
| Refresh | 14400s |
| Retry | 7200s |
| Expire | 2415600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2017-07-30 |
| Expires | 2027-07-31 (287d) |
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 |
|---|---|
| akfalken.dk | DANDOMAIN A/S |
| lyons.dk | Punktum dk A/S (direct) |
| retroblog.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-18 10:46:28 shown | 1469ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-26 09:19:26 | 2774ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-24 16:17:42 | 2787ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-11 00:18:13 | 8982ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-27 00:54:36 | 1199ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-07-23 23:13:37 | 10733ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-26 13:13:28 | 1301ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-19 12:23:14 | 1689ms | 4 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 12:04:15 | 1596ms | 4 NS 0 A 1 MX | 🔓 Insecure |