silleborg.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.silleborg.dk, vilmann.cloud.tilaa.com. 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 900s | mail.silleborg.dk | 87.62.103.38 | 0x573e6726.static.cust.fastspeed.dk | AS3292 TDC Holding A/S |
| 20 | 900s | vilmann.cloud.tilaa.com | 2a02:2770:5:0:21a:4aff:feee:d240 | vilmann.cloud.tilaa.com | AS196752 Tilaa B.V. |
| TXT Record |
|---|
| v=spf1 ip4:37.252.125.202/32 -all |
| Policy | Record (silleborg.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:37.252.125.202/32 -all |
| www | 87.62.103.38 (AS3292) (address records, no CNAME) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 0/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.silleborg.dk | sukyFksyU4bPN2yoqvWcjdP2t7AgJ00yaaqUqZmkCJ4 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026080801 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 11:51:20 | 1526ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-07 17:36:00 | 2251ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-22 05:15:42 | 5005ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-09 07:05:47 shown | 2230ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-15 16:24:26 | 4743ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-10 13:46:22 | 8876ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-27 03:16:41 | 653ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-24 11:35:23 | 1033ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-17 14:25:54 | 1788ms | 2 NS 0 A 2 MX | 🔒 Secure |