obu.dk is a .dk domain served by 5 nameservers (ns1pri.webhosting.dk, ns2.mywebtonet.com, ns2.webhosting.dk and 2 more). It was registered on 4 April 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 157.250.160.52 is hosted by Cibicom A/S (AS3342) in Denmark. Mail is handled by webhotel32.webhosting.dk. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 157.250.160.52 | 600s | webhotel32.webhosting.dk | AS3342 | Cibicom A/S | 157.250.160.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | webhotel32.webhosting.dk | 157.250.160.52 | webhotel32.webhosting.dk | AS3342 Cibicom A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | webhotel32.webhosting.dk → 157.250.160.52 |
| 🔶 Autoconfig | webhotel32.webhosting.dk → 157.250.160.52 |
| www CNAME | webhotel32.webhosting.dk (all on webhosting.dk) → 157.250.160.52 (AS3342) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.obu.dk | webhotel32.webhosting.dk |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.webhotel32.webhosting.dk | DANE-EE · SPKI · SHA-256 | 55ADE8CA0305C103E1438FF1EF2B3DA4… |
| SMTP _25._tcp.webhotel32.webhosting.dk | DANE-TA · SPKI · SHA-256 | 55ADE8CA0305C103E1438FF1EF2B3DA4… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2012040546 |
| Primary NS (MNAME) | ns1pri.webhosting.dk |
| Responsible (RNAME) | hostmaster@webhosting.dk |
| Refresh | 21600s |
| Retry | 3600s |
| Expire | 14515200s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2012-04-04 |
| Expires | 2027-04-30 (195d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 22:09:43 shown | 1475ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-09 11:46:37 | 593ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 06:07:53 | 9548ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 05:28:16 | 857ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 21:16:21 | 969ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-16 00:15:35 | 8844ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 16:36:51 | 1769ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 22:57:45 | 791ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 06:16:04 | 1083ms | 5 NS 1 A 1 MX | 🔒 Secure |