gefion-gymnasium.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 28 October 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.100 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by smtp.google.com, ms21432825.msv1.invalid. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 94.231.103.100 | 600s | dnsforward.simply.com | AS48854 | team.blue Denmark A/S | 94.231.96.0/20 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| google-site-verification=pl1QXN690zufSfYzxRQcOD3vvTYxbpe_t-1No6mQd2k |
| gv-34v7b2kxkdawdn.dv.googlehosted.com |
| MS=ms21432825 |
| v=spf1 -all |
| Policy | Record (gefion-gymnasium.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.gefion-gymnasium.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; aspf=s; adkim=s; |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve (all like this) |
| 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 |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
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: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026101200 |
| 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 | 2008-10-28 |
| Expires | 2026-10-31 (10d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 14:39:23 shown | 1631ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-03 21:39:45 | 593ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-20 04:43:28 | 1426ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-15 04:38:59 | 3872ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-12 18:22:23 | 2632ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-15 23:43:04 | 1446ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-25 21:45:21 | 1618ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-20 05:12:33 | 610ms | 2 NS 1 A 2 MX | ⚠️ Bogus |
| 2026-06-17 09:21:45 | 877ms | 2 NS 1 A 2 MX | 🔒 Secure |