kostumer.dk is a .dk domain served by 2 nameservers (fatima.ns.cloudflare.com, kipp.ns.cloudflare.com). It was registered on 6 September 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.49.25 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by kostumer-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 |
|---|---|---|---|---|---|---|---|
| 104.21.49.25 | — | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.158.13 | — | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| 🔶 Autoconfig | 172.67.158.13 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:3119 | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::ac43:9e0d | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.49.25,172.67.158.13 ech=AEX+DQBB+gAgACDXo7/7SbY1FdAaP7bfge0cVMs2IPJyyK+rgWhh7CQ0awAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:3119,2606:4700:3034::ac43:9e0d |
| TXT Record |
|---|
| google-site-verification=IWBQ5zdXFVvsrbl4XZcwtFSJtfytGghiRLxbLXYDViw |
| v=spf1 include:mail.zendesk.com include:sendgrid.net include:spf.protection.outlook.com include:trustpilotservice.com include:mailgun.org ~all |
| Policy | Record (kostumer.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:mail.zendesk.com include:sendgrid.net include:spf.protection.outlook.com include:trustpilotservice.com include:mailgun.org ~all |
| Policy | Record (_dmarc.kostumer.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:info@kostumer.dk |
| www | 104.26.10.86 104.26.11.86 172.67.74.168 2606:4700:20::681a:a56 2606:4700:20::681a:b56 2606:4700:20::ac43:4aa8 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network kostumer.dk: 104.26.10.86 104.26.11.86 172.67.74.168 2606:4700:20::681a:a56 (AS13335) www.kostumer.dk: 104.26.10.86 104.26.11.86 172.67.74.168 2606:4700:20::681a:a56 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u1687272.wl023.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u1687272.wl023.sendgrid.net | 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: 10/10 · 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 | 2407052783 |
| Primary NS (MNAME) | fatima.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 | 2002-09-06 |
| Expires | 2029-09-30 (1072d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 04:34:55 | 592ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-10-12 04:01:33 | 3150ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-10-05 21:33:39 | 2295ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-09-07 10:24:27 | 2602ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-23 14:20:32 | 4358ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-20 10:51:03 | 4611ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-15 10:39:54 | 3475ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-10 13:43:10 | 1472ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-31 23:38:20 | 9425ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-06 20:43:35 | 3119ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-29 04:43:41 | 1906ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-19 20:17:25 | 2038ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-19 10:28:57 | 4541ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 23:36:33 shown | 2940ms | 2 NS 2 A 1 MX | 🔓 Insecure |