nc.dk is a .dk domain served by 2 nameservers (elsa.ns.cloudflare.com, roan.ns.cloudflare.com). It was registered on 14 April 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.26.0.137 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by nc-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.26.0.137 | 300s | — | AS13335 | Cloudflare, Inc. | 104.26.0.0/20 | — | — |
| 104.26.1.137 | 300s | — | AS13335 | Cloudflare, Inc. | 104.26.0.0/20 | — | — |
| 172.67.69.229 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.64.0/18 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:20::681a:189 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:0:0:0:0:0:0/41 | — | — |
| 2606:4700:20::681a:89 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:0:0:0:0:0:0/41 | — | — |
| 2606:4700:20::ac43:45e5 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:0:0:0:0:0:0/41 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.26.0.137,104.26.1.137,172.67.69.229 ipv6hint=2606:4700:20::681a:89,2606:4700:20::681a:189,2606:4700:20::ac43:45e5 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| 1JLDnE6qHOEzvg8GLTLOCwM6hKhFheQhcPtB44ry+87xFC9IFdSSNu479imo9zLs9XiikoYIMWvI35UwXsODxw== |
| 5cWGujLRq8EJYwGGPls/Ef0jMIt9DKJv/6nF/MzgW7nGZC7IeDpMy1jVOuGp/pUQISoV3WPOf8/8VXmqd10Z8Q== |
| aekRzCpU2WJkjdTr12Sx |
| apple-domain-verification=mp-XQLsOe2-hOGWacTFksDNEeMIOfsSu2-kwffZWxYM |
| ciscocidomainverification=7c0308d01e739231c62db8c4cc90012cf7a331055e57aa7fbca7f39ff699cccd |
| facebook-domain-verification=61hn5boq89ryejkoqffozu2mnt610y |
| globalsign-domain-verification=9C5tPdCtxYmbV5wKtGhrWS3IFJ9vLEiRRxYcJ-l7rn |
| globalsign-domain-verification=iifcBRJkqBwbOwogwKbvWnG-2BLl4l-ALYh48PmvAg |
| globalsign-domain-verification=r9w-srgAPJcuHc61g4HjTaCa-aLqcW_Cd31dJQmDe_ |
| globalsign-domain-verification=TlurNFaDP37WkxMVaJqjUXRO4rjQHaO0FYOEgCJIi8 |
| globalsign-domain-verification=vpHwqqC7QWdXdU5suPaKmWAhqmip2Z5WuCFwVI62-3 |
| google-site-verification=sujOiUZptEvM-dFTkwy17UX_PlbpzlVzP3PZP-O32Zc |
| plFHST/jBDwq1iUhPkCDWlF45rO+N7XX4uITjdygPx+mTty+UPGTeQakSjLk41Ywzyh20+mn3cGbbOyAJez3hg== |
| v=spf1 include:spf.protection.outlook.com include:musvc.com include:spf.zitcom.dk include:customerspf.sitecore.net include:_spf.vaimo.net ip4:195.81.252.0/23 ip4:185.59.148.0/22 ip4:194.182.254.0/24 ip4:194.255.39.34 -all |
| Policy | Record (nc.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:musvc.com include:spf.zitcom.dk include:customerspf.sitecore.net include:_spf.vaimo.net ip4:195.81.252.0/23 ip4:185.59.148.0/22 ip4:194.182.254.0/24 ip4:194.255.39.34 -all |
| Policy | Record (_dmarc.nc.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:633c00dc7e5f7@dmarc.centerasecurity.com; ruf=mailto:dmarcforensics@nc.dk; fo=1; |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:report-abuse@globalsign.com |
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | globalsign.com |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | globalsign.com |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| www | 104.26.0.137 104.26.1.137 172.67.69.229 2606:4700:20::681a:189 2606:4700:20::681a:89 2606:4700:20::ac43:45e5 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-nc-dk._domainkey.ncgdk.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: 9/10 · policy: -all
| 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 | 2415759454 |
| Primary NS (MNAME) | elsa.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 1997-04-14 |
| Expires | 2027-06-30 (254d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-06 12:20:08 | 1458ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-09-30 10:10:53 | 1123ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-09-26 05:02:09 | 2911ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-09-25 04:45:36 shown | 1875ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-09-24 04:13:45 | 1328ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-08-12 14:39:51 | 6364ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-08-04 13:37:14 | 2253ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-07-25 17:46:29 | 1951ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-07-17 12:53:42 | 1549ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-07-03 11:17:34 | 1278ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-06-23 18:48:28 | 1336ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-06-23 00:01:54 | 920ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 01:13:32 | 5003ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-06-19 21:20:45 | 4160ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-06-17 17:54:21 | 4177ms | 2 NS 3 A 1 MX | 🔓 Insecure |