fflabs.dk is a .dk domain served by 2 nameservers (jobs.ns.cloudflare.com, sofia.ns.cloudflare.com). It was registered on 5 July 2026 (WHOIS) and first appeared in the .dk zone on 6 July 2026. Its website address 104.21.57.42 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.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 |
|---|---|---|---|---|---|---|---|
| 104.21.57.42 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.189.31 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.189.31 |
| 🔶 Autoconfig | 172.67.189.31 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::ac43:bd1f | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:392a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.57.42,172.67.189.31 ech=AEX+DQBBNgAgACAOmSOgtxPP0QaygFvTvfhje7nsDhOj/ocNSSOuaX02RgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:bd1f,2606:4700:3037::6815:392a |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com -all |
| Policy | Record (fflabs.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com -all |
| www | 104.21.57.42 172.67.189.31 2606:4700:3035::ac43:bd1f 2606:4700:3037::6815:392a (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.fflabs.dk | -kVV64G59cBwB_3daTaJ_fvgHvlTwJHI0E5m6KwMRyQ |
| TXT | _acme-challenge.fflabs.dk | 1Ybx4Qf2zzsb4lHPJHW7DZliMZ2nrJkFxCUWsqDOknM |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| 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 | 2414226620 |
| Primary NS (MNAME) | jobs.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 | 2026-07-05 |
| Expires | 2027-07-04 (259d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 01:36:24 | 512ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-14 21:14:08 | 2125ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-07 19:58:03 shown | 586ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-22 21:39:59 | 914ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-20 14:08:28 | 965ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-17 02:45:01 | 834ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-06 08:40:57 | 1177ms | 3 NS 1 A 1 MX | 🔒 Secure |