onlinesystem.dk is a .dk domain served by 2 nameservers (ns1.ge4.dk, ns2.ge4.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.243.116.212 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by relay.ge4.dk, relay1-backup.ge4.dk and 1 more. The zone is not DNSSEC-signed, publishes a 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.ge4.dk | 80.243.116.211 | — | AS31027 GlobalConnect A/S |
| ns2.ge4.dk | 80.243.116.211 | — | AS31027 GlobalConnect A/S |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 80.243.116.212 | 360s | — | AS31027 | GlobalConnect A/S | 80.243.112.0/20 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | relay.ge4.dk | 80.243.116.213 | relay.ge4.dk | AS31027 GlobalConnect A/S |
| 20 | 3600s | relay1-backup.ge4.dk | — | — | — |
| 30 | 3600s | tar.junkemailfilter.com | 184.105.182.213 184.105.182.214 184.105.182.215 184.105.182.223 184.105.182.224 184.105.182.225 |
— — — — — — |
AS6939 Hurricane Electric LLC AS6939 Hurricane Electric LLC AS6939 Hurricane Electric LLC AS6939 Hurricane Electric LLC AS6939 Hurricane Electric LLC AS6939 Hurricane Electric LLC |
| TXT Record |
|---|
| google-site-verification=-Jlj-dDjb5ZoMdbFJ6HxlfiN7cwCS6rnZYfWawfPNxw |
| v=spf1 ip4:80.243.116.210/28 -all |
| Policy | Record (onlinesystem.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:80.243.116.210/28 -all |
| Policy | Record (_dmarc.onlinesystem.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:utaq5se7@ag.dmarcian.com |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| www | 80.243.116.212 (AS31027) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2025062304 |
| Primary NS (MNAME) | ns1.ge4.dk |
| Responsible (RNAME) | support\@ge4@dk |
| Refresh | 7200s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 08:09:57 shown | 17847ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-04 00:10:24 | 5201ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-26 21:02:26 | 5214ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-03 21:54:21 | 16958ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-08-20 08:43:52 | 11782ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-26 16:07:18 | 2301ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-22 11:48:05 | 1193ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 03:37:18 | 8757ms | 2 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-17 13:00:16 | 14105ms | 2 NS 1 A 3 MX | 🔓 Insecure |