telborg.dk is a .dk domain served by 2 nameservers (dns1.pro.dk, dns2.pro.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by telborg-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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| dns1.pro.dk | 37.140.219.20 | — | AS31027 GlobalConnect A/S |
| dns2.pro.dk | 37.140.219.21 | — | AS31027 GlobalConnect A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| TXT Record |
|---|
| MS=ms84057374 |
| v=spf1 include:spf.protection.outlook.com a:smtpout.pro.dk -all |
| Policy | Record (telborg.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com a:smtpout.pro.dk -all |
| Policy | Record (_dmarc.telborg.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:dmarc@telborg.dk |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves telborg.dk: no address www.telborg.dk: no address |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-telborg-dk._domainkey.rentasdk.n-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: 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 | 16 |
| Primary NS (MNAME) | dns1.pro.dk |
| Responsible (RNAME) | hostmaster@pro.dk |
| Refresh | 900s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-29 17:38:24 shown | 1014ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-27 22:57:49 | 958ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-08-26 11:34:27 | 993ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-26 14:54:04 | 917ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-20 13:29:15 | 2831ms | 2 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-17 20:07:18 | 1445ms | 2 NS 0 A 1 MX | 🔓 Insecure |