just-justesen.dk is a .dk domain served by 2 nameservers (alexia.ns.cloudflare.com, ernest.ns.cloudflare.com). It was registered on 23 September 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.15.101 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by justjustesen-dk01b.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.15.101 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.162.40 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::ac43:a228 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::6815:f65 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.15.101,172.67.162.40 ech=AEX+DQBB3QAgACAFEOoyfpwDTL+aJF1GKUFS6cbVFlQAtUoaR3TJ4tm+IAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:a228,2606:4700:3035::6815:f65 |
| TXT Record |
|---|
| ca3-b6d12712a42c4e2699bb657e70a4c2cb |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (just-justesen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | 104.21.15.101 172.67.162.40 2606:4700:3031::ac43:a228 2606:4700:3035::6815:f65 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network just-justesen.dk: 104.21.15.101 172.67.162.40 2606:4700:3031::ac43:a228 2606:4700:3035::6815:f65 (AS13335) www.just-justesen.dk: 104.21.15.101 172.67.162.40 2606:4700:3031::ac43:a228 2606:4700:3035::6815:f65 (AS13335) |
| Wildcard | No |
DNS lookups: 1/10 · 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 | 2416365189 |
| Primary NS (MNAME) | alexia.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 | 2008-09-23 |
| Expires | 2027-09-30 (346d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 18:40:06 shown | 978ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-02 18:01:16 | 990ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 17:46:09 | 1319ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 12:21:42 | 10331ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 01:15:22 | 885ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 10:05:14 | 1230ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-05 20:18:43 | 1684ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-24 01:15:21 | 2333ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:35:20 | 2164ms | 2 NS 2 A 1 MX | 🔓 Insecure |