studenterguiden.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 6 September 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.109.54 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.simply.com. 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 |
|---|---|---|---|---|---|---|---|
| 94.231.109.54 | 3600s | linux49.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 |
|---|---|
| 🔶 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 (studenterguiden.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com -all |
| Policy | Record (_dmarc.studenterguiden.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
| www | 94.231.109.54 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| 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 |
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 | 4B949F05A63FED95FC94B3A83DD70167… |
| 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 | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026100300 |
| 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 | Simply.com A/S |
| Registered | 2006-09-06 |
| Expires | 2029-09-30 (1074d) |
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).
| Domain | Registrar |
|---|---|
| windows12.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 04:51:13 | 649ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-04 08:40:50 shown | 549ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-04 07:47:51 | 2135ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 07:27:58 | 369ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 09:53:13 | 473ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-10 13:30:51 | 799ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-25 11:17:04 | 3599ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-24 16:39:13 | 3185ms | 5 NS 1 A 1 MX | ❓ Unknown |
| 2026-08-23 14:40:14 | 3155ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-22 13:20:29 | 6339ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-21 13:09:35 | 1304ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-20 12:18:54 | 4056ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-19 06:27:36 | 3445ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-28 05:28:10 | 12339ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-27 05:07:50 | 3685ms | 5 NS 1 A 1 MX | ❓ Unknown |
| 2026-07-26 04:33:30 | 11844ms | 5 NS 1 A 1 MX | ❓ Unknown |
| 2026-07-25 04:12:28 | 9908ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-22 21:49:40 | 12513ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-21 19:28:50 | 3713ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-10 15:15:23 | 3410ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-09 01:10:18 | 4422ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-30 02:07:02 | 3142ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 21:35:17 | 801ms | 5 NS 1 A 1 MX | 🔓 Insecure |