| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 217.19.237.54 | 3600s | 217.19.237.54.static.hosted.by.combell.com | AS34762 | Combell NV | 217.19.236.0/23 | 🇧🇪 Belgium | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | invalid.aalberts-hfc.dk | — | — | — |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (aalberts-hfc.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.aalberts-hfc.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; rua=mailto:it@aalberts.com; aspf=s; adkim=s; |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:it@aalberts.com |
| 0 | issue | letsencrypt.org |
| 0 | issuewild | ; |
| 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 | 1764361994 |
| Primary NS (MNAME) | ns3.combell.net |
| Responsible (RNAME) | hostmaster@aalberts-hfc.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 40000s |