systembyg.dk is a .dk domain served by 2 nameservers (ns1.telanco.dk, ns2.telanco.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 84.246.247.21 is hosted by Novaram ApS (AS34165) in Denmark. Mail is handled by systembyg-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|
| ns1.telanco.dk | 84.246.245.104 | 84-246-245-104.unalloc.logiqit.net | AS34165 Novaram ApS |
| ns2.telanco.dk | 84.246.247.29 | 84-246-247-29.cust.novaram.net | AS34165 Novaram ApS |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 84.246.247.21 | 3600s | web04.telanco.dk | AS34165 | Novaram ApS | 84.246.244.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| TXT Record |
|---|
| MS=ms63978323 |
| v=spf1 ip4:84.246.247.21 include:spf.protection.outlook.com -all |
| Policy | Record (systembyg.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:84.246.247.21 include:spf.protection.outlook.com -all |
| www | 84.246.247.21 (AS34165) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-systembyg-dk._domainkey.systembygdk.w-v1.dkim.mail.microsoft | RSA · ~2048 bit |
| selector2 | selector2-systembyg-dk._domainkey.systembygdk.w-v1.dkim.mail.microsoft | 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: 1/10 · 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 | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2025050502 |
| Primary NS (MNAME) | ns1.telanco.dk |
| Responsible (RNAME) | hostmaster@telanco.dk |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 06:22:41 shown | 4866ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 16:40:50 | 13611ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-20 22:10:33 | 711ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 09:14:44 | 1245ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-25 12:48:57 | 3159ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-25 11:05:59 | 1189ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-21 10:30:09 | 65535ms | 2 NS 1 A 1 MX | ❓ Unknown |
| 2026-06-26 01:00:21 | 924ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 00:37:14 | 16636ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 05:16:26 | 1084ms | 2 NS 1 A 1 MX | 🔓 Insecure |