tqo.dk is a .dk domain served by 4 nameservers (ns01.one.com, ns02.one.com, ns1.nbi.dk and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 130.226.237.173 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by mx2.nbi.dk. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 130.226.237.173 | 86400s | cmslb.adm.ku.dk | AS1835 | IDDQD-AS | 130.226.0.0/16 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 86400s | mx2.nbi.dk | 130.225.213.194 | mx2.nbi.dk | AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education |
| TXT Record |
|---|
| Theoretical Quantum Optics, Niels Bohr Institute, University of Copenhagen |
| www | 130.226.237.173 (AS1835) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| 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 | 2022070901 |
| Primary NS (MNAME) | ns1.nbi.dk |
| Responsible (RNAME) | hostmaster@nbi.dk |
| Refresh | 7200s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 20:31:14 shown | 2288ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 09:30:32 | 847ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-23 03:57:26 | 587ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 03:36:12 | 723ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 20:29:28 | 2123ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 12:59:29 | 566ms | 4 NS 1 A 1 MX | 🔓 Insecure |