ffe-ye.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 2 September 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.209.190.227 is hosted by Kontainer A/S (AS198452) in Denmark. Mail is handled by post.tietgen.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 91.209.190.227 | 600s | lait1 | AS198452 | Kontainer A/S | 91.209.190.0/24 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | post.tietgen.dk | 195.41.8.13 | — | AS3292 TDC Holding A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 195.41.8.13 |
| 🔶 Autoconfig | 91.209.190.227 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 0 | 443 | autodiscover.tietgen.dk |
| TXT Record |
|---|
| MS=ms99203927 |
| v=spf1 a mx:post.tietgen.dk ip4:195.181.8.2 include:spf.protection.outlook.com include:spf.ubivox.com -all |
| Policy | Record (ffe-ye.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx:post.tietgen.dk ip4:195.181.8.2 include:spf.protection.outlook.com include:spf.ubivox.com -all |
| www | 91.209.190.227 (AS198452) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 4/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026093000 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2010-09-02 |
| Expires | 2028-09-30 (705d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-25 10:47:10 | 103ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-24 05:40:13 | 378ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-22 04:28:48 | 96ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-21 00:22:26 | 116ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-19 22:18:51 | 230ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-18 21:49:27 | 210ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-17 20:59:57 | 771ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-12 12:09:20 | 741ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-12 12:02:17 | 736ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 00:29:05 shown | 2023ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 00:22:57 | 430ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 13:17:13 | 621ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 14:34:52 | 643ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 00:55:13 | 627ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 22:17:11 | 1180ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 09:40:27 | 1009ms | 4 NS 1 A 1 MX | 🔒 Secure |