oister.dk is a .dk domain served by 5 nameservers (nordic1.dnsnode.net, ns.hi3gaccess.se, ns2.hi3gaccess.se and 2 more). It was registered on 10 July 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.105.224.30 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by oister-dk.mail.protection.outlook.com. 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 |
|---|---|---|---|---|---|---|---|
| 20.105.224.30 | 300s | — | AS8075 | Microsoft Corporation | 20.64.0.0/10 | 🇳🇱 The Netherlands | Amsterdam |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 1 | 100 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| _globalsign-domain-verification=74OkKV_yd88Wn6xYVSOv7Q7YzPEJTV6fDoX5OU4VVI |
| _globalsign-domain-verification=aI-oErJee-rIYMwALGFD8BnbD0M_SARt4AGGBjO8nP |
| _globalsign-domain-verification=LHnAno9avEaXJrkkaygC4AepuEmgqKuz1oNWZjrNOn |
| 5fb947cb2179b58ffd40c5a0ce70b185 |
| Ck0T/rglPN3apCimLLugOrCZdqDoj/YTmFOWg5Mc6+dg1gBCHtLFhi625Il0MzEysz12U6lAyViZcoV4ZJI1Ew== |
| facebook-domain-verification=bnoy3edy5u989vsd82da8cvth6088d |
| google-site-verification=CAdO75wYha5vrC6pAvlN0FK5w_FuOx47dnq2T0LvETo |
| google-site-verification=q6WcD1XeDjGmXABqKPSgmzvaijd7oRNJKaaJlAD0txw |
| google-site-verification=YZhL-p8t9sQRqwImPfJiYqnn-axIs1CXsTZiQVx7LMI |
| MS=ms87239180 |
| Record or data --> atlassian-domain-verification=o4csc1WKjoKEjrsM02aT6FMwidzL27XSAETY7nEbAt064n2hvccURky5FuSWD0Ke |
| SFMC--eOyjp54ULPSyNlOVL8CEExL74GwwymIsONok1EV |
| v=spf1 include:spf.protection.outlook.com include:spf1.tre.se include:spf2.tre.se include:_spf.rulemailer.com include:mail.zendesk.com -all |
| Policy | Record (oister.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf1.tre.se include:spf2.tre.se include:_spf.rulemailer.com include:mail.zendesk.com -all |
| Policy | Record (_dmarc.oister.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:dkim@oister.dk; ruf=mailto:dkim@oister.dk; sp=quarantine |
| www CNAME | prod-oister-ghbfandjbsd6cqa7.a03.azurefd.net (all on azurefd.net) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| BIMI | v=BIMI1; l=https://www.oister.dk/globalassets/Icons/mailLogo/oister.svg; a=; |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-oister-dk._domainkey.3online.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-oister-dk._domainkey.3online.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: 7/10 · 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 | 2026092400 |
| Primary NS (MNAME) | ns.hi3gaccess.se |
| Responsible (RNAME) | hostmaster@tre.se |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 2008-07-10 |
| Expires | 2027-07-31 (287d) |
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 |
|---|---|---|---|
| 2026-10-16 03:10:08 | 2203ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-15 02:00:26 | 3061ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-14 00:31:25 | 988ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-12 21:51:57 | 2629ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-11 18:48:50 | 1255ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-09 15:02:07 | 2334ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-08 14:50:39 | 733ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 14:39:28 | 1328ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-06 13:31:17 | 1315ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-04 11:27:37 | 1373ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-03 11:26:40 | 1163ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-02 11:25:55 | 1323ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 11:17:59 | 1555ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 21:05:24 | 863ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-27 20:48:59 | 1281ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 20:35:46 | 962ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 19:55:52 | 1127ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 07:52:42 shown | 976ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 07:44:16 | 1255ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 07:31:05 | 2739ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-20 06:29:35 | 1399ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-15 13:29:31 | 2319ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-08 10:58:50 | 830ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-31 05:21:09 | 1985ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-30 03:53:40 | 2130ms | 5 NS 1 A 1 MX | 🔓 Insecure |