kallstrom.dk is a .dk domain served by 2 nameservers (dexter.ns.cloudflare.com, joselyn.ns.cloudflare.com). It was registered on 29 January 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.52.202 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by isaac.mx.cloudflare.net, linda.mx.cloudflare.net and 1 more. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.52.202 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.203.163 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::ac43:cba3 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:34ca | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.52.202,172.67.203.163 ech=AEX+DQBB9QAgACCk4Rz6RvbLAb6Vl5vbWuvBZu+UdargMhYaAkrkElPvawAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:cba3,2606:4700:3037::6815:34ca |
| TXT Record |
|---|
| v=spf1 include:_spf.google.com include:_spf.mx.cloudflare.net ~all |
| Policy | Record (kallstrom.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com include:_spf.mx.cloudflare.net ~all |
| Policy | Record (_dmarc.kallstrom.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:a9c37e07ca794a94ae457051b38325fb@dmarc-reports.cloudflare.net |
| www | 104.21.52.202 172.67.203.163 2606:4700:3032::ac43:cba3 2606:4700:3037::6815:34ca (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network kallstrom.dk: 104.21.52.202 172.67.203.163 2606:4700:3032::ac43:cba3 2606:4700:3037::6815:34ca (AS13335) www.kallstrom.dk: 104.21.52.202 172.67.203.163 2606:4700:3032::ac43:cba3 2606:4700:3037::6815:34ca (AS13335) |
| Wildcard | No |
DNS lookups: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.amir.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.amir.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.amir.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.isaac.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.isaac.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.isaac.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.linda.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.linda.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.linda.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| 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 | 2417491500 |
| Primary NS (MNAME) | dexter.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 | 1999-01-29 |
| Expires | 2027-03-31 (157d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 21:34:27 shown | 4367ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-09 11:09:49 | 2676ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-15 19:49:14 | 10355ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-27 05:34:15 | 1422ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-17 12:29:14 | 3904ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-09 21:47:14 | 1806ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-25 11:31:47 | 1230ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-20 19:26:38 | 5148ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-17 15:22:26 | 1568ms | 2 NS 2 A 3 MX | 🔓 Insecure |