u9.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 83.92.189.178 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx.spamfilter.io. 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 |
|---|---|---|---|---|---|---|---|
| 83.92.189.178 | 3600s | 83-92-189-178-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 83.92.0.0/16 | 🇩🇰 Denmark | Agedrup |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 83.92.189.178 |
| 🔶 Autoconfig | 83.92.189.178 |
| www | 83.92.189.178 (AS3292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.spamfilter.io | DANE-EE · SPKI · SHA-256 | 9A25F05F2E322DABDCC9B7A06AB47A2D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2021111701 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-28 04:03:53 shown | 754ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 16:23:44 | 749ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 06:46:26 | 746ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-19 22:14:20 | 585ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 06:00:31 | 3213ms | 2 NS 1 A 1 MX | 🔒 Secure |