schuleit.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 94.231.103.123 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, 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 |
|---|---|---|---|---|---|---|---|
| 94.231.103.123 | 3600s | linux106.unoeuro.com | AS48854 | team.blue Denmark A/S | 94.231.96.0/20 | 🇩🇰 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 | 94.231.103.123 |
| 🔶 Autoconfig | maildiscover.simply.com → 94.231.108.222 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | maildiscover.simply.com |
| www CNAME | schuleit.github.io (all on github.io) |
| www vs bare domain | Same network schuleit.dk: 185.199.108.153 185.199.109.153 185.199.110.153 185.199.111.153 (AS54113) www.schuleit.dk: 185.199.108.153 185.199.109.153 185.199.110.153 185.199.111.153 (AS54113) |
| Wildcard | No |
| 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 |
| 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 |
|---|---|---|---|
| 2026-10-01 16:55:21 | 795ms | 4 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-24 15:53:17 | 552ms | 4 NS 4 A 1 MX | 🔒 Secure |
| 2026-09-20 17:32:08 | 690ms | 4 NS 4 A 1 MX | 🔒 Secure |
| 2026-07-28 04:35:30 shown | 835ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-27 04:12:10 | 9184ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-26 03:20:32 | 10279ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-25 02:56:06 | 9423ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-24 02:24:19 | 1568ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-23 01:45:56 | 10186ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-21 19:12:33 | 10192ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-19 21:41:09 | 3992ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-18 19:51:46 | 1408ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-17 18:23:42 | 1369ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-16 05:50:37 | 1736ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-14 11:48:37 | 1732ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-13 00:54:03 | 10310ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-11 15:35:21 | 17920ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-07-08 21:59:44 | 9424ms | 4 NS 0 A 0 MX | ⚠️ Bogus |
| 2026-06-23 17:13:14 | 669ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 19:40:53 | 1184ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:34:48 | 1814ms | 4 NS 1 A 1 MX | 🔒 Secure |