birkelundbiler.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was registered on 5 November 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx4.spamfri.dk, mx2.spamfri.dk and 2 more. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.e-studio.dk | — | — | — |
| ns2.e-studio.dk | — | — | — |
| ns3.e-studio.dk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 193.200.90.102 | — | web9.e-studio.dk | AS62121 | — | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mx4.spamfri.dk | 193.200.91.108 | mx4.spamfri.dk | AS62121 Christian Ebsen ApS |
| 20 | — | mx2.spamfri.dk | 193.200.91.109 | mx2.spamfri.dk | AS62121 Christian Ebsen ApS |
| 30 | — | mx3.spamfri.dk | 62.69.152.43 62.69.152.43 |
43.34-46.152.69.62.in-addr.arpa mx3.spamfri.dk |
AS47527 DLX A/S AS47527 DLX A/S |
| 40 | — | mx1.spamfri.dk | 195.242.131.16 | mx1.spamfri.dk | AS62121 Christian Ebsen ApS |
| TXT Record |
|---|
| v=spf1 ip4:193.200.90.102 include:_spf.e-studio.dk ip4:195.242.130.99 +a +mx ~all |
| Policy | Record (birkelundbiler.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:193.200.90.102 include:_spf.e-studio.dk ip4:195.242.130.99 +a +mx ~all |
| www CNAME | birkelundbiler.dk (all on birkelundbiler.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~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: 3/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.spamfri.dk | DANE-EE · SPKI · SHA-256 | 884451547A03D0AC2F628D943839BAA6… |
| SMTP _25._tcp.mx2.spamfri.dk | DANE-EE · SPKI · SHA-256 | 6598C93F79B95376BB8099E9AC862167… |
| SMTP _25._tcp.mx3.spamfri.dk | DANE-EE · SPKI · SHA-256 | BBFB0694919290E5BC9D6E2C6F47D846… |
| SMTP _25._tcp.mx4.spamfri.dk | DANE-EE · SPKI · SHA-256 | 4EE743A99328AEF5142706CA5FD3AD61… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026050501 |
| Primary NS (MNAME) | ns1.e-studio.dk |
| Responsible (RNAME) | hostmaster@mailrelay.e-studio.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | dns.services ApS |
| Registered | 1999-11-05 |
| Expires | 2026-12-31 (75d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 10:19:19 | 1063ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-10-01 02:08:18 | 728ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-09-29 15:28:10 | 1920ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-09-24 18:23:19 | 670ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-09-18 03:35:59 | 629ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-09-07 12:03:10 | 1073ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-07-06 21:56:15 | 1442ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-29 03:50:25 | 851ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-28 18:30:52 | 747ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-23 04:19:38 | 871ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-16 14:46:53 shown | 624ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-16 14:40:07 | 1131ms | 3 NS 1 A 4 MX | 🔓 Insecure |