quantum-photonics.dk is a .dk domain served by 4 nameservers (ns01.one.com, ns02.one.com, ns1.nbi.dk and 1 more). It was registered on 31 January 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx2.nbi.dk. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 130.226.237.173 | — | cmslb.adm.ku.dk | AS1835 | — | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mx2.nbi.dk | 130.225.213.194 | mx2.nbi.dk | AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education |
| TXT Record |
|---|
| Quantum Photonics group - Niels Bohr Institutet |
| v=spf1 -all |
| Policy | Record (quantum-photonics.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.quantum-photonics.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s |
| www CNAME | cmsgw.adm.ku.dk (all on ku.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
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 | 2024110101 |
| Primary NS (MNAME) | ns1.nbi.dk |
| Responsible (RNAME) | hostmaster@nbi.dk |
| Refresh | 7200s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2012-01-31 |
| Expires | 2027-01-31 (106d) |
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).
Showing 100 of 121.
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 07:13:53 | 431ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-28 09:15:38 | 857ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-25 20:48:29 | 643ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-23 11:58:46 | 784ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 21:55:30 | 2267ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-18 19:07:31 | 566ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 21:43:46 shown | 3868ms | 4 NS 1 A 1 MX | 🔓 Insecure |