cjc.dk is a .dk domain served by 2 nameservers (dolly.ns.cloudflare.com, doug.ns.cloudflare.com). It was registered on 24 May 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.26.0.220 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by cjc-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.26.0.220 | 300s | — | AS13335 | Cloudflare, Inc. | 104.26.0.0/20 | — | — |
| 104.26.1.220 | 300s | — | AS13335 | Cloudflare, Inc. | 104.26.0.0/20 | — | — |
| 172.67.73.123 | 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:1dc | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:20:0:0:0:0:0/44 | — | — |
| 2606:4700:20::681a:dc | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:20:0:0:0:0:0/44 | — | — |
| 2606:4700:20::ac43:497b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:20:0:0:0:0:0/44 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.26.0.220,104.26.1.220,172.67.73.123 ipv6hint=2606:4700:20::681a:dc,2606:4700:20::681a:1dc,2606:4700:20::ac43:497b |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | autodiscover.cjc.dk |
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| "MS=ms68935799 |
| 912af30bc28aa0e6eb6b39ee23db17355f1783bc955ef91823 |
| apple-domain-verification=6zK8G11o2lv4V6NW |
| d365mktkey=X6un5GxxPx70IwrvrxkgGPHoor1RXuCbOn6BLrzm5fEx |
| google-site-verification=_SfUFse1W_XUe3gVTbSfs-qc-Naett4PBVbb7BhZJpI |
| google-site-verification=VzpjY6_VXVp6tyAK9CFv6ulK1qQYNXKxIzX0xnC5lOE |
| MS=ms68935799 |
| msfpkey=5kiqbu4bzsl0ckigec9ukw0g6 |
| t36c8w5nj56gdpvjxq7qrd9yxlsmdfhz |
| v=spf1 ip4:87.54.29.239 ip4:87.54.29.222 ip4:212.53.209.141 ip4:154.14.40.86 include:spf.protection.outlook.com include:spf.mailanyone.net include:spf.mandrillapp.com include:mail.zendesk.com -all |
| Policy | Record (cjc.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:87.54.29.239 ip4:87.54.29.222 ip4:212.53.209.141 ip4:154.14.40.86 include:spf.protection.outlook.com include:spf.mailanyone.net include:spf.mandrillapp.com include:mail.zendesk.com -all |
| Policy | Record (_dmarc.cjc.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@cjc.dk;ruf=mailto:dmarc@cjc.dk; |
| www | 104.26.0.220 104.26.1.220 172.67.73.123 2606:4700:20::681a:1dc 2606:4700:20::681a:dc 2606:4700:20::ac43:497b (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-cjc-dk._domainkey.ccjensen.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-cjc-dk._domainkey.ccjensen.onmicrosoft.com | 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: 4/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.cjc.dk | 3bd-zfaU8V2digj661cHrlWMEeSHJmJzu2b9t3fISTo |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2417415541 |
| Primary NS (MNAME) | dolly.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1996-05-24 |
| Expires | 2027-06-30 (255d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 04:49:04 shown | 1188ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-10-11 22:43:34 | 1153ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-23 13:06:33 | 1697ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-16 11:55:59 | 2021ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-12 06:30:32 | 1645ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-08 06:52:44 | 1024ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-09-06 20:27:21 | 2630ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-08-27 02:58:37 | 891ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-08-26 02:39:54 | 2170ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-08-20 11:14:15 | 9335ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-08-14 06:57:20 | 9352ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-08-03 04:02:14 | 9322ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-07-30 23:14:27 | 1373ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-07-27 10:04:32 | 1521ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-07-18 15:54:34 | 25932ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-07-10 10:43:52 | 2545ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-06-27 01:21:31 | 1422ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-06-20 07:05:47 | 940ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-06-16 22:42:57 | 65535ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-06-16 21:21:07 | 2208ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-06-16 21:02:58 | 4521ms | 2 NS 3 A 1 MX | 🔒 Secure |
| 2026-06-16 21:01:04 | 939ms | 2 NS 3 A 1 MX | 🔒 Secure |