| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (frogeducation.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.frogeducation.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | ; |
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.frogeducation.dk | E_HcIMt-1KWldNDEedAJFdgfHsHGH9V_FynkmEESEDs |
| TXT | _acme-challenge.frogeducation.dk | LPDzUOyJSyfye1bo5Axvg-voJP5UddS1MxZfWkMZAHs |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2413321326 |
| Primary NS (MNAME) | donovan.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-09-01 08:44:49 | 9573ms | 2 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-08-27 18:03:11 | 1119ms | 2 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-08-27 15:21:32 | 997ms | 2 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-08-20 04:23:19 | 8750ms | 2 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-06-25 16:09:47 | 747ms | 2 NS 0 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 09:31:24 | 670ms | 2 NS 0 A 0 MX | 🔓 Insecure | View |