dennisjakobsen.dk is a .dk domain served by 2 nameservers (cloe.ns.cloudflare.com, fred.ns.cloudflare.com). It was registered on 30 December 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.63.251 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx01.mail.icloud.com, mx02.mail.icloud.com. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.63.251 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.173.177 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::6815:3ffb | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:adb1 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.63.251,172.67.173.177 ech=AEX+DQBBrQAgACCyYUtu+hjEKpfaUBb9so9Jt4Ua7vJpLWUs6ahSnP5/WwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:3ffb,2606:4700:3037::ac43:adb1 |
| TXT Record |
|---|
| apple-domain=zwTWITHuSYbSMb8O |
| v=spf1 include:icloud.com ~all |
| Policy | Record (dennisjakobsen.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:icloud.com ~all |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve dennisjakobsen.dk: 104.21.63.251 172.67.173.177 2606:4700:3035::6815:3ffb 2606:4700:3037::ac43:adb1 (AS13335) (all like this)www.dennisjakobsen.dk: no address |
| Wildcard | No |
DNS lookups: 5/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.dennisjakobsen.dk | 9LirnI49-KkNswKqlsyfgf_TzFh89ytNxnhxsaH-t0Q |
| TXT | _acme-challenge.dennisjakobsen.dk | VeipLrbLddi3SvNWNI9BZrPL7PrQ7EA97zRJFgnGo7E |
| 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 | 2413469896 |
| Primary NS (MNAME) | cloe.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 | 2017-12-30 |
| Expires | 2026-12-31 (64d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-24 11:53:45 | 938ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-22 18:55:19 | 3197ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-09 14:18:05 | 661ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-08 01:56:56 | 531ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-28 05:53:34 | 1301ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-22 21:57:42 | 2626ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-21 00:37:57 | 1621ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-13 21:47:23 | 1056ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-29 21:14:11 shown | 2187ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-23 21:50:49 | 1679ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-25 16:56:37 | 1126ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-23 18:13:49 | 1196ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-17 02:59:56 | 65535ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-17 02:16:39 | 3229ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-17 02:05:18 | 793ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-17 02:00:48 | 2924ms | 2 NS 2 A 2 MX | 🔓 Insecure |