alstom.dk is a .dk domain served by 3 nameservers (ns2.observatoiredesmarques.fr, ns3.nameshield.net, obs.ns1.fr). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx3.nameshield.com, mx4.nameshield.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 |
|---|---|---|---|---|---|
| 0 | 300s | mx3.nameshield.com | 81.92.84.191 | mx3.perf1.com | AS20756 Nameshield SAS |
| 10 | 300s | mx4.nameshield.net | 81.92.81.40 | mx4.nameshield.net | AS20756 Nameshield SAS |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (alstom.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.alstom.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; |
| www CNAME | saspresence.perf1.com (all on perf1.com) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
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: 0/10 · 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 | 2024021613 |
| Primary NS (MNAME) | obs.ns1.fr |
| Responsible (RNAME) | technical@nameshield.net |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 7200s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 00:06:33 shown | 914ms | 3 NS 0 A 2 MX | 🔓 Insecure |
| 2026-09-23 15:38:26 | 1124ms | 3 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-27 00:56:27 | 1405ms | 3 NS 0 A 2 MX | 🔓 Insecure |
| 2026-06-16 13:24:32 | 695ms | 3 NS 0 A 2 MX | 🔓 Insecure |