| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 78.159.101.157 | 43200s | opal9.opalstack.com | AS28753 | Leaseweb Deutschland GmbH | 78.159.96.0/19 | 🇩🇪 Germany | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mx1.us.opalstack.com | 108.62.123.121 | mx1.us.opalstack.com | AS30633 Leaseweb USA, Inc. |
| 10 | 43200s | mx2.us.opalstack.com | 23.82.16.244 2605:fe80:2100:bf03:7::2 |
mx2.us.opalstack.com mx2.us.opalstack.com |
AS7203 Leaseweb USA, Inc. AS7203 Leaseweb USA, Inc. |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026030501 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |