ncb.dk is a .dk domain served by 4 nameservers (ns1-06.azure-dns.com, ns2-06.azure-dns.net, ns3-06.azure-dns.org and 1 more). It was registered on 29 November 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 86.58.179.52 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by ncb-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 |
|---|---|---|---|---|---|---|---|
| 86.58.179.52 | 300s | — | AS47292 | Sentia Denmark A/S | 86.58.176.0/21 | 🇩🇰 Denmark | Holbæk |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 1 | 100 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| _ervnwdk5vndkr60y0sywza6nwd0mfjf |
| _zihe0mqxicte79h90rsrz1wl49tlqlg |
| apple-domain-verification=TLRZAPg729ioagKb |
| fy2z3vmn9npyp6wc7dwm03dzhzw32bxt |
| ms-domain-verification=ef5db068-2a37-46f1-812f-57f7e2c8ff40 |
| MS=ms89298090 |
| N0O0R65703 |
| p5zIflpVFlaK7efDn5h4jD2V749ga6SCFwEt1DashqZV3ANboInAmlg2kK58EI8QQbMFlNpGrw222a2vzAXZIA== |
| v=spf1 ip4:188.120.91.163 ip4:86.58.179.59 ip4:86.58.179.58 ip4:217.171.208.171 ip4:217.171.209.2 include:spf.messagelabs.com include:spf.protection.outlook.com -all |
| w6s81dxzbrjdvs36w7djl84ckjc143tk |
| Policy | Record (ncb.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:188.120.91.163 ip4:86.58.179.59 ip4:86.58.179.58 ip4:217.171.208.171 ip4:217.171.209.2 include:spf.messagelabs.com include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.ncb.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc_agg@vali.email; |
| www | 86.58.179.52 (AS47292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-ncb-dk._domainkey.kodadk.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| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.ncb.dk | n9k5j9w9chj13j93wmth4clt8s54t9ry |
| 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 | 1 |
| Primary NS (MNAME) | ns1-06.azure-dns.com |
| Responsible (RNAME) | azuredns-hostmaster@microsoft.com |
| Refresh | 3600s |
| Retry | 300s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | SAC-IT A/S |
| Registered | 1996-11-29 |
| Expires | 2026-12-31 (67d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 17:37:42 shown | 1077ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 14:33:40 | 928ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 16:25:54 | 19373ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 11:08:02 | 895ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 05:01:51 | 1016ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 05:23:42 | 810ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 21:06:10 | 1534ms | 4 NS 1 A 1 MX | 🔓 Insecure |