glassline.dk is a .dk domain served by 3 nameservers (ns.udag.de, ns.udag.net, ns.udag.org). It was registered on 28 February 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.31.143.90 is hosted by united-domains GmbH (AS202108) in Germany. Mail is handled by mx01.hornetsecurity.com, mx02.hornetsecurity.com and 2 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 89.31.143.90 | 598s | — | AS202108 | united-domains GmbH | 89.31.142.0/23 | 🇩🇪 Germany | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx01.hornetsecurity.com | 94.100.132.8 | mx01.hornetsecurity.com | AS25394 MK Netzdienste GmbH & Co. KG |
| 20 | 3600s | mx02.hornetsecurity.com | 94.100.136.8 | mx02.hornetsecurity.com | AS24679 kyberio GmbH |
| 30 | 3600s | mx03.hornetsecurity.com | 94.100.134.8 | mx03.hornetsecurity.com | AS12676 HKN GmbH |
| 40 | 3600s | mx04.hornetsecurity.com | 94.100.136.7 | mx04.hornetsecurity.com | AS24679 kyberio GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 80.151.155.163 |
| 🔶 Autoconfig | 89.31.143.90 |
| TXT Record |
|---|
| MmXXNXJsCJtjCkj3XL61c4To2C+0/BOjLL9opd/X318= |
| MS=ms11263889 |
| v=spf1 mx ip4:178.77.121.160 include:spf.hornetsecurity.com include:spf.protection.outlook.com include:_spf.perfora.net include:_spf.kundenserver.de -all |
| Policy | Record (glassline.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx ip4:178.77.121.160 include:spf.hornetsecurity.com include:spf.protection.outlook.com include:_spf.perfora.net include:_spf.kundenserver.de -all |
| Policy | Record (_dmarc.glassline.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; rua=mailto:mailto:info@glassline.dk; ruf=mailto:info@glassline.dk; sp=none; aspf=r; adkim=r; rf=afrf; ri=86400 |
| www | 89.31.143.90 (AS202108) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 5/10 · 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 | 2024092034 |
| Primary NS (MNAME) | ns.udag.de |
| Responsible (RNAME) | hostmaster@united-domains.de |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2014-02-28 |
| Expires | 2027-02-28 (134d) |
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 |
|---|---|---|---|
| 2026-09-24 04:20:42 shown | 2572ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-07-01 23:47:41 | 1096ms | 3 NS 1 A 4 MX | 🔓 Insecure |
| 2026-06-17 09:26:29 | 701ms | 3 NS 1 A 4 MX | 🔓 Insecure |