silleborg.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 13 September 2001 (WHOIS) and 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 our latest 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 | 2026100802 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2001-09-13 |
| Expires | 2027-09-30 (344d) |
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 |
|---|---|---|---|
| 2026-10-08 11:51:20 shown | 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 | 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 |