silkeborg-mail.dk is a .dk domain served by 3 nameservers (ns4.hostonline.dk, ns5.hostonline.dk, ns6.hostonline.dk). It was registered on 4 October 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.195.185.220 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by he.hostonline.dk, mx-backup.hostonline.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 our latest 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 |
|---|---|---|---|---|---|---|---|
| 217.195.185.220 | 3600s | webhotel12.hostonline.dk | AS31027 | GlobalConnect A/S | 217.195.176.0/20 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscoverredirect.hostonline.dk → 217.195.185.209 |
| TXT Record |
|---|
| v=spf1 a mx include:_spf.hostonline.dk -all |
| Policy | Record (silkeborg-mail.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx include:_spf.hostonline.dk -all |
| www CNAME | silkeborg-mail.dk (all on silkeborg-mail.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 10 iterations · 8-byte salt · opt-out RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 6/10 · 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 | 2026101502 |
| Primary NS (MNAME) | ns4.hostonline.dk |
| Responsible (RNAME) | hostmaster@hostonline.dk |
| Refresh | 86400s |
| Retry | 7200s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 172800s |
| Field | Value |
|---|---|
| Registrar | TS COMPUTER ApS |
| Registered | 2019-10-04 |
| Expires | 2026-10-31 (14d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 05:55:33 shown | 1289ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-10 21:42:59 | 3128ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-05 11:17:56 | 841ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 11:02:42 | 682ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 08:25:36 | 647ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-25 06:44:25 | 1897ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-23 06:09:43 | 767ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-16 00:22:48 | 2960ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-12 05:42:14 | 3787ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-09 13:12:45 | 2537ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-04 04:56:11 | 494ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 01:37:30 | 900ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-21 13:00:45 | 5866ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-17 22:55:51 | 10917ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-11 15:50:47 | 794ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-10 02:23:38 | 10316ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-02 01:18:38 | 1271ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-27 21:20:26 | 1085ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-22 18:33:43 | 825ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-18 09:09:36 | 8773ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-15 06:02:58 | 2759ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-08 23:10:01 | 934ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-03 18:56:28 | 9838ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-27 19:40:50 | 965ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-26 22:13:10 | 643ms | 3 NS 1 A 2 MX | 🔒 Secure |