zeltner.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 185.20.205.70 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.simply.com. 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 |
|---|---|---|---|---|---|---|---|
| 185.20.205.70 | 3600s | linux394.unoeuro.com | AS48854 | team.blue Denmark A/S | 185.20.204.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.20.205.70 |
| 🔶 Autoconfig | maildiscover.simply.com → 94.231.108.222 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | maildiscover.simply.com |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com -all |
| Policy | Record (zeltner.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com -all |
| Policy | Record (_dmarc.zeltner.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
DNS lookups: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| 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 |
|---|---|---|---|
| 2026-10-21 19:00:28 | 123ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-20 18:26:12 | 166ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-19 16:19:12 | 267ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-18 15:27:19 | 114ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-17 15:07:22 | 216ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-16 14:04:26 | 470ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-15 12:57:42 | 160ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-14 12:54:05 | 124ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-13 12:11:01 | 133ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-12 09:53:17 | 314ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-11 09:09:07 | 309ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-10 06:45:35 | 210ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-08 11:51:17 | 230ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-07 11:40:13 | 118ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-06 09:28:25 | 455ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-05 08:46:38 | 282ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-04 08:34:35 | 275ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-02 14:53:02 | 111ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-10-01 14:51:41 | 248ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-30 14:45:00 | 628ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-30 08:13:49 | 224ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-29 08:00:54 | 217ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-28 07:22:50 | 216ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-27 07:06:37 | 195ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-09-26 06:59:52 | 221ms | 1 NS 0 A 0 MX | ❓ Unknown |