os-data.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 10 March 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.237.183.73 is hosted by EWII Bredbaand A/S (AS204151) in Denmark. Mail is handled by osdata-dk0e.mail.eo.outlook.com. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 212.237.183.73 | 86400s | mail.osdata.dk | AS204151 | EWII Bredbaand A/S | 212.237.176.0/21 | 🇩🇰 Denmark | Ballerup Municipality |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms37086983 |
| v=spf1 include:outlook.com ~all |
| Policy | Record (os-data.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:outlook.com ~all |
| www CNAME | host.osdata.dk (all on osdata.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 2/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2023062332 |
| Primary NS (MNAME) | ns1.one.com |
| Responsible (RNAME) | ole@stanstrup.dk |
| Refresh | 10800s |
| Retry | 1800s |
| Expire | 2592000s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2008-03-10 |
| Expires | 2027-03-31 (163d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 16:03:24 | 430ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-12 13:26:29 | 1128ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-11 13:04:57 | 1676ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-05 08:33:59 | 751ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-03 08:14:04 | 2900ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-02 08:11:32 | 2307ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-28 06:59:52 | 599ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 01:21:51 | 722ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 00:58:54 | 1100ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 00:43:09 | 703ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-19 16:09:25 | 1523ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-08 15:48:32 | 1386ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-31 00:08:27 | 7323ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-28 12:50:45 | 920ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 12:34:44 | 4751ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-21 02:25:25 | 11229ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-20 02:11:28 | 3175ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-19 01:38:49 shown | 5264ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-11 22:54:32 | 1975ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-10 18:58:32 | 6901ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-07 07:00:23 | 1929ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-01 17:42:44 | 9775ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-25 18:46:42 | 18027ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-23 17:07:28 | 10539ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-22 14:38:03 | 3116ms | 2 NS 1 A 1 MX | 🔓 Insecure |