rendbaekconsulting.dk is a .dk domain served by 2 nameservers (carrera.ns.cloudflare.com, sullivan.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.32.187 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.32.187 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.223.238 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.32.187 |
| 🔶 Autoconfig | 104.21.32.187 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::6815:20bb | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::ac43:dfee | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.32.187,172.67.223.238 ech=AEX+DQBBJQAgACC/21wWhhzN7DcxzcgpF0SCUfz8jkyCIBDXqFdQkkfjdgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:20bb,2606:4700:3036::ac43:dfee |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| v=spf1 ip4:5.134.13.233 +a +mx ~all |
| Policy | Record (rendbaekconsulting.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:5.134.13.233 +a +mx ~all |
| www | 104.21.32.187 172.67.223.238 2606:4700:3032::6815:20bb 2606:4700:3036::ac43:dfee (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network rendbaekconsulting.dk: 104.21.32.187 172.67.223.238 2606:4700:3032::6815:20bb 2606:4700:3036::ac43:dfee (AS13335) www.rendbaekconsulting.dk: 104.21.32.187 172.67.223.238 2606:4700:3032::6815:20bb 2606:4700:3036::ac43:dfee (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 2/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.rendbaekconsulting.dk | Zr-Hc_38lw7rL1hdbxv5WMDknLJhVviASBcmW_rbHlc |
| TXT | _acme-challenge.rendbaekconsulting.dk | _gsgGWLCsZ6vg5GgmI9zITzKfyD9DhvmU5pHHft6UNc |
| TXT | _acme-challenge.rendbaekconsulting.dk | eXfFL9IY3cSberTQE3Qv__uaUW2qvw8JBJ1VR6sF2z8 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2413953530 |
| Primary NS (MNAME) | carrera.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-28 19:51:34 | 698ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-11 10:41:33 | 1739ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-04 08:26:35 shown | 582ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-22 12:11:52 | 7756ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-04 02:41:20 | 1474ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-18 08:15:42 | 986ms | 2 NS 1 A 1 MX | 🔓 Insecure |