ohb.dk is a .dk domain served by 2 nameservers (jasmine.ns.cloudflare.com, mitch.ns.cloudflare.com). It was registered on 23 April 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.37.133 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by ohb-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 104.21.37.133 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.208.64 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.99.149.104 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:d040 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::6815:2585 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.37.133,172.67.208.64 ech=AEX+DQBBNAAgACC4wKsViIVeI2yMq3YMH8sqE/VEdkcQQtNd73VxeSKlJQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:d040,2606:4700:3033::6815:2585 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| google-site-verification=byMz4rPA0D-r2AB2-ja9Vm1sz3Q4-u-54vY1SSDcV-A |
| MS=ms83957379 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (ohb.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| www | Exists, no address |
| www vs bare domain | www does not resolve ohb.dk: 104.21.37.133 172.67.208.64 2606:4700:3030::ac43:d040 2606:4700:3033::6815:2585 (AS13335) (all like this)www.ohb.dk: no address |
| Wildcard | No |
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.ohb.dk | Ma43XZtvfdMrrJOvRrnjWcA1Rw-J6oqa4c665tTRoKs |
| TXT | _acme-challenge.ohb.dk | fPm2FvrG3nt_cUIxN7NmxyFNcM-uTqFPWpxtDsBT2OM |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2412950529 |
| Primary NS (MNAME) | jasmine.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2001-04-23 |
| Expires | 2027-06-30 (253d) |
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 |
|---|---|---|---|
| 2026-10-19 02:57:44 shown | 2839ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-17 00:48:05 | 2747ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-27 01:21:12 | 1280ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-23 10:25:53 | 2492ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-21 08:43:02 | 4546ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-20 07:52:04 | 2754ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-19 04:09:32 | 9533ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-18 02:55:34 | 1646ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 12:24:31 | 2516ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-21 05:37:11 | 1103ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 14:40:13 | 2885ms | 2 NS 2 A 1 MX | 🔓 Insecure |