techst.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 4 August 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.21 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 |
|---|---|---|---|---|---|---|---|
| 93.191.156.21 | 3600s | linux176.unoeuro.com | AS48854 | team.blue Denmark A/S | 93.191.152.0/21 | 🇩🇰 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 | 93.191.156.21 |
| 🔶 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 (techst.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com -all |
| Policy | Record (_dmarc.techst.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
| www | 104.21.87.170 172.67.144.197 2606:4700:3033::6815:57aa 2606:4700:3037::ac43:90c5 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
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 |
| Field | Value |
|---|---|
| Registrar | Obsidian Digital A/S |
| Registered | 2026-08-04 |
| Expires | 2027-08-03 (288d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
Showing 100 of 846.
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 16:13:34 | 508ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-03 15:13:01 | 978ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-02 15:09:47 | 697ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-30 14:59:05 | 481ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-27 09:34:02 | 542ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-01 21:37:13 | 9469ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-07 18:56:17 | 928ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-02 05:01:02 | 10002ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-31 10:18:24 | 757ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-29 20:43:29 | 749ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-28 07:24:43 | 8837ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-27 05:52:24 | 765ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-26 05:27:42 | 717ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-25 04:57:50 | 817ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-24 04:07:13 | 721ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-23 03:22:02 | 850ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-22 00:48:23 | 8590ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-20 23:46:53 | 684ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-19 17:46:02 | 8663ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-18 09:33:42 | 665ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-17 09:02:34 | 783ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-12 12:21:24 | 640ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-10 16:37:12 | 746ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-09 05:40:39 | 849ms | 1 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-07 00:46:17 | 833ms | 1 NS 0 A 0 MX | ❓ Unknown |