testguides.dk is a .dk domain served by 5 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk and 2 more). It was registered on 21 February 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.200.90.182 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by mail.testguides.dk. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 193.200.90.182 | 300s | web12.e-studio.dk | AS62121 | Christian Ebsen ApS | 193.200.90.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.testguides.dk | 193.200.90.182 | web12.e-studio.dk | AS62121 Christian Ebsen ApS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 193.200.90.182 |
| 🔶 Autoconfig | 193.200.90.182 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| v=spf1 +a +mx +ip4:193.200.90.182 include:_spf.e-studio.dk +include:relay.mailchannels.net -all |
| Policy | Record (testguides.dk) |
|---|---|
| -all (hard fail) | v=spf1 +a +mx +ip4:193.200.90.182 include:_spf.e-studio.dk +include:relay.mailchannels.net -all |
| Policy | Record (_dmarc.testguides.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; sp=none |
| www | 104.21.76.65 172.67.190.238 2606:4700:3033::ac43:beee 2606:4700:3034::6815:4c41 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network testguides.dk: 104.21.76.65 172.67.190.238 2606:4700:3033::ac43:beee 2606:4700:3034::6815:4c41 (AS13335) www.testguides.dk: 104.21.76.65 172.67.190.238 2606:4700:3033::ac43:beee 2606:4700:3034::6815:4c41 (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~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.
DNS lookups: 4/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.testguides.dk | hSiY0UTuOTiwAV6ZHpKmihwkySNVNGLzbQhzKAfYJb0 |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026092005 |
| Primary NS (MNAME) | ns1.e-studio.dk |
| Responsible (RNAME) | hostmaster@mailrelay.e-studio.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2025-02-21 |
| Expires | 2027-02-20 (123d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 09:34:48 | 1048ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-06 06:49:03 | 1297ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-01 05:59:14 shown | 505ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 23:47:31 | 491ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-21 04:50:38 | 460ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-16 15:17:59 | 711ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-29 01:15:29 | 1124ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-25 15:09:19 | 1632ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-24 13:06:56 | 8768ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-20 06:13:10 | 7992ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-12 21:22:53 | 961ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-26 01:44:22 | 935ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-20 02:13:42 | 647ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-18 07:17:16 | 686ms | 2 NS 2 A 0 MX | 🔓 Insecure |