Check reverse DNS for a domain's mail servers: up to five MX hosts, their IPv4 a...
https://api.lookproof.dev/v1/mail/ptrOverview
Check reverse DNS for a domain's mail servers: up to five MX hosts, their IPv4 and IPv6 addresses, each PTR name and whether it resolves back to the same address (FCrDNS), with coded findings. Use when an agent must tell whether a domain's mail servers have matching reverse DNS, a common reason for rejected or spam-filed mail.
Protocol
x402
Price
$0.01
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Lookproof
Source
bazaar
Indexed
2026-10-27 12:51:28
Health
Status
healthy
Latency (p50)
131ms
Uptime (30d)
97.9%
Reliability Score
94/100
Last Checked
2026-10-30 00:17:08
Last Healthy
2026-10-30 00:17:08
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"domain": "example.com"
},
"type": "http"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-30 00:17:08 | healthy | 402 | 145ms | |
| 2026-10-29 23:13:28 | healthy | 402 | 115ms | |
| 2026-10-29 22:15:21 | healthy | 402 | 48ms | |
| 2026-10-29 21:12:49 | healthy | 402 | 40ms | |
| 2026-10-29 20:11:51 | healthy | 402 | 125ms | |
| 2026-10-29 19:16:42 | healthy | 402 | 182ms | |
| 2026-10-29 18:13:52 | healthy | 402 | 100ms | |
| 2026-10-29 17:19:24 | healthy | 402 | 91ms | |
| 2026-10-29 16:12:52 | healthy | 402 | 265ms | |
| 2026-10-29 15:11:47 | healthy | 402 | 167ms | |
| 2026-10-29 14:18:08 | healthy | 402 | 247ms | |
| 2026-10-29 13:19:47 | healthy | 402 | 131ms | |
| 2026-10-29 12:11:21 | healthy | 402 | 50ms | |
| 2026-10-29 11:18:46 | healthy | 402 | 393ms | |
| 2026-10-29 10:17:31 | healthy | 402 | 160ms | |
| 2026-10-29 09:12:32 | healthy | 402 | 81ms | |
| 2026-10-29 08:16:35 | healthy | 402 | 298ms | |
| 2026-10-29 07:11:41 | healthy | 402 | 97ms | |
| 2026-10-29 06:17:43 | healthy | 402 | 165ms | |
| 2026-10-29 05:11:30 | healthy | 402 | 120ms |