ubonline.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.184.85.20 is hosted by PerfGrid (AS59795) in The Netherlands. Mail is handled by pmg1.h4r.eu, pmg2.h4r.eu. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 213.184.85.20 | 600s | nlsh04.h4r-infra.net | AS59795 | PerfGrid | 213.184.84.0/23 | 🇳🇱 The Netherlands | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | pmg1.h4r.eu | 2a01:4f8:c012:7e77::1 49.12.11.203 |
pmg1.h4r.eu filter02.h4r.eu |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| 20 | 3600s | pmg2.h4r.eu | 2001:41d0:701:1100::a6bc 57.129.66.76 |
filter04.h4r.eu filter04.h4r.eu |
AS16276 OVH SAS AS16276 OVH SAS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 213.184.85.20 |
| 🔶 Autoconfig | maildiscover.simply.com → 94.231.108.222 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | maildiscover.simply.com |
| www | 213.184.85.20 (AS59795) (address records, no CNAME) |
| 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 | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 2048 bit |
| k1 | dkim.mcsv.net | RSA · ~1024 bit below 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.
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.ubonline.dk | 92096441-407c-4ca7-8fb4-094cae21f2a1.auth.acme-challenge.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2025042300 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 21:03:43 | 739ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-30 14:34:45 | 770ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-26 20:28:58 | 663ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-24 04:48:39 | 1137ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-23 00:42:38 | 840ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-21 02:34:20 | 740ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-20 04:30:55 | 841ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-20 00:54:51 shown | 2484ms | 4 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-17 11:52:12 | 791ms | 4 NS 1 A 2 MX | 🔒 Secure |