| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.proofpoint.com | — | — | — |
| ns3.proofpoint.com | — | — | — |
| pdns99.ultradns.biz | — | — | — |
| pdns99.ultradns.com | — | — | — |
| pdns99.ultradns.net | — | — | — |
| pdns99.ultradns.org | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 54.244.247.63 | — | ec2-54-244-247-63.us-west-2.compute.amazonaws.com | AS16509 | Amazon.com, Inc. | 54.244.0.0/14 | 🇺🇸 United States | Boardman |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (cloudfilter.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| 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 | 2020120909 |
| Primary NS (MNAME) | ns1.proofpoint.com |
| Responsible (RNAME) | ops@proofpoint.com |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 900s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-22 23:00:19 | 3058ms | 6 NS 1 A 0 MX | 🔓 Insecure | View |
| 2026-08-21 22:53:03 | 6757ms | 6 NS 1 A 0 MX | 🔓 Insecure | View |
| 2026-06-23 03:33:43 | 3483ms | 6 NS 1 A 0 MX | ❓ Unknown | View |
| 2026-06-22 17:02:38 | 1182ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-16 21:21:55 | 434ms | 6 NS 1 A 0 MX | 🔓 Insecure | View |
| 2026-06-16 21:20:29 | 2853ms | 6 NS 1 A 0 MX | 🔓 Insecure | View |