ybmail.dk is a .dk domain served by 5 nameservers (dns1.dk, dns2.dk, dns3.dk and 2 more). It was registered on 29 November 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.34.148.3 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by rogue.bornhosting.dk. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 188.34.148.3 | 3600s | phoenix.bornhosting.dk | AS24940 | Hetzner Online GmbH | 188.34.128.0/17 | 🇩🇪 Germany | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | rogue.bornhosting.dk | 188.34.148.10 2a01:4f8:fff0:93::10 |
rogue.bornhosting.dk rogue.bornhosting.dk |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 188.34.148.3 |
| 🔶 Autoconfig | 188.34.148.3 |
| TXT Record |
|---|
| v=spf1 mx include:_spf.bornhosting.dk -all |
| Policy | Record (ybmail.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx include:_spf.bornhosting.dk -all |
| Policy | Record (_dmarc.ybmail.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| www | 188.34.148.3 (AS24940) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 0 iterations · no salt · opt-out RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~4096 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: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026071102 |
| Primary NS (MNAME) | dns1.dk |
| Responsible (RNAME) | support@borndata.dk |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2006-11-29 |
| Expires | 2026-11-30 (44d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 13:39:11 | 4391ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-11 05:03:55 | 886ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-08 00:20:31 | 1215ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-06 09:50:14 | 1618ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 07:47:10 | 2728ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 06:28:55 | 1065ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 04:29:27 | 982ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-21 23:13:44 | 834ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-18 23:43:17 | 1917ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-09 09:16:56 | 2191ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-07 11:48:21 | 4493ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 08:44:05 | 989ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 13:10:51 | 1195ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 05:25:20 | 2492ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-21 01:19:04 | 2358ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-16 13:48:14 | 3409ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-11 10:50:51 | 3380ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-07 01:23:51 | 9233ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-02 01:50:36 | 1973ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-26 06:37:19 | 9274ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 22:15:12 | 2400ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-17 07:43:18 | 4665ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-14 03:31:42 shown | 1341ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-06 18:43:18 | 5085ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 19:55:47 | 4112ms | 5 NS 1 A 1 MX | 🔒 Secure |