otsuka.dk is a .dk domain served by 4 nameservers (ns-1036.awsdns-01.org, ns-1768.awsdns-29.co.uk, ns-188.awsdns-23.com and 1 more). It was registered on 19 May 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 52.212.226.238 is hosted by Amazon.com, Inc. (AS16509) in Ireland. Mail is handled by otsuka-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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.
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | owa.otsuka-europe.com |
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| _xmpp-server._tcp | 10 | 0 | 5269 | sip.otsuka.dk |
| _xmpp-server._tcp | 20 | 0 | 5269 | sip2.otsuka.dk |
| TXT Record |
|---|
| adobe-idp-site-verification=9eb859ab406491cc7c6c5b250fc4fd99a0204308c7612e242cdd755b86462a37 |
| atlassian-domain-verification=Z7DklSYzNoEoVtnIxE6Y72nbIIMr0DelqenLqosDm9rdOY/BTn1qv6NXkdreSbWh |
| docusign=231b9f13-3a76-44f3-8f72-1b910bb8e4fb |
| e2NPfYGoWOFX+usqO1x7DYL/7qcDwmxgCnD8Cx5QgUcb/MFhke/M/bJBRaAQvW4ZCFtq21XlXUUZxl5yre4+tg== |
| MS=ms10561764 |
| onetrust-domain-verification=4030d41613cd41a193bc35be83f2cb9c |
| onetrust-domain-verification=71f189d7f3a1490f9bd4b39bb431a558 |
| v=spf1 include:spf.protection.outlook.com ip4:178.217.92.23 -all |
| Policy | Record (otsuka.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com ip4:178.217.92.23 -all |
| Policy | Record (_dmarc.otsuka.dk) |
|---|---|
| p=quarantine | v=DMARC1;p=quarantine;rua=mailto:opelitsecurity@otsuka-europe.com |
| www | 52.212.226.238 52.213.236.165 54.247.166.81 (AS16509) (address records, no CNAME) |
| www vs bare domain | Same network otsuka.dk: 52.212.226.238 52.213.236.165 54.247.166.81 (AS16509) www.otsuka.dk: 52.212.226.238 52.213.236.165 54.247.166.81 (AS16509) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-otsuka-dk._domainkey.oneotsuka.onmicrosoft.com | RSA · ~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: 1/10 · 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 | 1 |
| Primary NS (MNAME) | ns-1036.awsdns-01.org |
| Responsible (RNAME) | awsdns-hostmaster@amazon.com |
| Refresh | 7200s |
| Retry | 900s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2004-05-19 |
| Expires | 2027-05-31 (224d) |
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 |
|---|---|---|---|
| 2026-08-27 07:19:53 | 6618ms | 4 NS 3 A 1 MX | 🔒 Secure |
| 2026-06-20 19:00:02 | 2002ms | 4 NS 3 A 1 MX | 🔒 Secure |
| 2026-06-20 05:19:30 | 1571ms | 4 NS 3 A 1 MX | 🔒 Secure |
| 2026-06-17 22:52:32 shown | 1368ms | 4 NS 3 A 1 MX | 🔒 Secure |