aarhus-mail.dk is a .dk domain served by 3 nameservers (ns4.hostonline.dk, ns5.hostonline.dk, ns6.hostonline.dk). It was registered on 7 December 2017 (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, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 217.195.185.220 | 3600s | webhotel12.hostonline.dk | AS31027 | GlobalConnect A/S | 217.195.176.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | he.hostonline.dk | 217.195.185.200 2a02:188:164::100 |
he.hostonline.dk he.hostonline.dk |
AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S |
| 30 | 43200s | mx-backup.hostonline.dk | 217.195.185.201 2a02:188:6004:15::12 |
mx-backup.hostonline.dk spamfront2.hostonline.dk |
AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscoverredirect.hostonline.dk → 217.195.185.209 |
| TXT Record |
|---|
| v=spf1 a mx include:_spf.hostonline.dk -all |
| Policy | Record (aarhus-mail.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx include:_spf.hostonline.dk -all |
| Policy | Record (_dmarc.aarhus-mail.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; aspf=r; |
| www CNAME | aarhus-mail.dk (all on aarhus-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 | 2026092502 |
| 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 | 2017-12-07 |
| Expires | 2026-12-31 (75d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 20:23:20 | 463ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-10 15:11:11 | 527ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-09 12:40:58 | 683ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-05 08:01:20 | 1745ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-30 07:07:20 | 621ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-25 05:05:08 shown | 646ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-22 03:25:59 | 2921ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-15 09:52:44 | 785ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-08 09:26:58 | 2512ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-05 21:15:57 | 3135ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-28 08:58:18 | 9584ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 03:14:20 | 949ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-21 06:38:24 | 1384ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-16 03:32:30 | 1539ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-11 22:23:33 | 9751ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-06 09:21:13 | 1112ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-27 11:15:20 | 961ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-22 07:36:45 | 851ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-18 00:55:19 | 898ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-13 23:01:42 | 1326ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-08 17:33:33 | 1520ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-03 12:49:57 | 5179ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-27 08:19:31 | 670ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-22 15:57:01 | 2303ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-22 02:24:00 | 3821ms | 3 NS 1 A 2 MX | 🔒 Secure |