oxygensoftware.dk is a .dk domain served by 2 nameservers (ns1.123hotel.dk, ns2.123hotel.dk). It was registered on 12 February 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.109.69 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by oxygensoftware-dk.mail.eo.outlook.com. The zone is DNSSEC-signed but currently fails validation, 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 |
|---|---|---|---|---|---|---|---|
| 94.231.109.69 | 3600s | — | AS48854 | team.blue Denmark A/S | 94.231.96.0/20 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| 🔶 Autoconfig | www.oxygen.dk → 20.105.216.31 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms11288289 |
| v=spf1 mx ip4:94.231.106.100 mx ip4:93.160.59.162 mx ip4:94.231.109.40 mx ip4:94.231.109.69 mx ip4:93.160.59.162 mx:oxygensoftware-dk.mail.eo.outlook.com ip4:94.231.108.223 include:outlook.com include:spf.protection.outlook.com ~all |
| Policy | Record (oxygensoftware.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx ip4:94.231.106.100 mx ip4:93.160.59.162 mx ip4:94.231.109.40 mx ip4:94.231.109.69 mx ip4:93.160.59.162 mx:oxygensoftware-dk.mail.eo.outlook.com ip4:94.231.108.223 include:outlook.com include:spf.protection.outlook.com ~all |
| Policy | Record (_dmarc.oxygensoftware.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:mp@oxygen.dk |
| www | 94.231.109.69 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-oxygensoftware-dk._domainkey.oxygenoffice.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-oxygensoftware-dk._domainkey.oxygenoffice.onmicrosoft.com | RSA · ~1024 bit below 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: 9/10 · policy: ~all
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.oxygensoftware.dk | www.oxygen.dk |
| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'oxygensoftware.dk/DNSKEY/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2025110702 |
| Primary NS (MNAME) | ns1.123hotel.dk |
| Responsible (RNAME) | hostmaster@123hotel.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2003-02-12 |
| Expires | 2027-02-28 (129d) |
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 |
|---|---|---|---|
| 2026-09-23 19:36:36 | 611ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 05:20:13 | 1845ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 22:47:08 | 2452ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 02:08:40 shown | 4758ms | 2 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-18 00:35:50 | 1247ms | 2 NS 1 A 1 MX | 🔒 Secure |