sigurdkempf.dk is a .dk domain served by 2 nameservers (alexa.ns.cloudflare.com, skip.ns.cloudflare.com). It was registered on 14 April 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.17.253 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx01.mail.icloud.com, mx02.mail.icloud.com. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.17.253 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.178.245 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:11fd | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:b2f5 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.17.253,172.67.178.245 ech=AEX+DQBBIQAgACDgUCbE4wpf2efGI6685PyQ6dzVEGoZ4Mz6OHZvckPOdgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:11fd,2606:4700:3037::ac43:b2f5 |
| TXT Record |
|---|
| apple-domain=zHcchWYDoaDVwkbI |
| v=spf1 include:icloud.com ~all |
| Policy | Record (sigurdkempf.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:icloud.com ~all |
| Policy | Record (_dmarc.sigurdkempf.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www | 104.21.17.253 172.67.178.245 2606:4700:3030::6815:11fd 2606:4700:3037::ac43:b2f5 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network sigurdkempf.dk: 104.21.17.253 172.67.178.245 2606:4700:3030::6815:11fd 2606:4700:3037::ac43:b2f5 (AS13335) www.sigurdkempf.dk: 104.21.17.253 172.67.178.245 2606:4700:3030::6815:11fd 2606:4700:3037::ac43:b2f5 (AS13335) |
| Wildcard | No |
DNS lookups: 5/10 · 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 | 2417204276 |
| Primary NS (MNAME) | alexa.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2019-04-14 |
| Expires | 2028-04-30 (559d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 13:15:04 shown | 3332ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-11 12:28:09 | 4077ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-09 04:06:48 | 1051ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-01 21:30:09 | 1373ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-29 21:25:24 | 581ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-25 22:37:57 | 1426ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-20 02:55:51 | 1023ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-06 00:07:36 | 2081ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-25 13:47:37 | 773ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-16 06:10:19 | 4663ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-11 11:45:23 | 5656ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-02 18:33:52 | 1630ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-06-27 13:47:16 | 1050ms | 2 NS 3 A 1 MX | 🔓 Insecure |
| 2026-06-24 10:07:59 | 1469ms | 2 NS 3 A 1 MX | ❓ Unknown |
| 2026-06-17 14:55:30 | 2529ms | 2 NS 3 A 1 MX | 🔓 Insecure |