ottosen.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was registered on 12 February 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 157.55.238.140 is hosted by Microsoft Corporation (AS8075) in United States. Mail is handled by ottosen-dk.mail.eo.outlook.com. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 157.55.238.140 | 2160s | — | AS8075 | Microsoft Corporation | 157.55.0.0/16 | 🇺🇸 United States | Addison |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.97.223.88 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 1 | 100 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms12848782 |
| v=spf1 include:outlook.com ~all |
| Policy | Record (ottosen.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:outlook.com ~all |
| www CNAME | ottosen-web.sharepoint.com (all on sharepoint.com) ⚠ Dangling: the CNAME target does not exist. If that name can be claimed (an unregistered domain, or a free name on a hosting platform), whoever claims it controls www.ottosen.dk |
| www vs bare domain | www does not resolve (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2020051201 |
| Primary NS (MNAME) | ns.scannet2.dk |
| Responsible (RNAME) | hostmaster@scannet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | A/S SCANNET |
| Registered | 1997-02-12 |
| Expires | 2027-03-31 (162d) |
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 |
|---|---|---|---|
| 2026-10-02 14:04:07 | 398ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-18 09:04:20 | 625ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-08 07:02:45 | 777ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-01 10:32:27 | 4675ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-27 06:41:01 | 5120ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-27 04:57:16 | 5483ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 01:24:20 shown | 4905ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 00:36:20 | 4652ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 20:27:19 | 4866ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 01:28:14 | 2703ms | 2 NS 1 A 1 MX | 🔒 Secure |