perberg.dk is a .dk domain served by 5 nameservers (ns1.d-n-s.dk, ns2.d-n-s.dk, ns3.d-n-s.dk and 2 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.131 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by perberg-dk.mail.protection.outlook.com. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.21.41.131 | 3600s | linux23.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| DNS-Service by D-N-S.DK |
| MS=ms75737513 |
| v=spf1 +a +mx +a:erp.uniconta.com include:spf.protection.outlook.com -all |
| Policy | Record (perberg.dk) |
|---|---|
| -all (hard fail) | v=spf1 +a +mx +a:erp.uniconta.com include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.perberg.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:dmarc@perberg.dk; ruf=mailto:dmarc@perberg.dk; |
| www CNAME | perberg.dk (all on perberg.dk) → 185.21.41.131 (AS48854) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-perberg-dk._domainkey.perbergss.onmicrosoft.com | 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: 4/10 · 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 | 2025030502 |
| Primary NS (MNAME) | ns1.d-n-s.dk |
| Responsible (RNAME) | hostmaster@d-n-s.dk |
| Refresh | 7200s |
| Retry | 120s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 10:14:31 shown | 10098ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 00:56:25 | 4873ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 03:21:23 | 9030ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-04 02:29:41 | 6914ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-18 16:24:47 | 10514ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-04 22:54:08 | 12905ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-24 03:55:59 | 10586ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 02:53:28 | 983ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:37:02 | 6170ms | 5 NS 1 A 1 MX | 🔓 Insecure |