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IP Listed on Backscatterer DNSBL
x402
IP Listed on Backscatterer DNSBL is a paid API for AI agents from ip.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Checks whether a given IPv4 address is listed on the Backscatterer DNSBL (ips.backscatterer.org) and returns listed status, return codes, and reason text.
Price / call$0.01
Success—
StatusUnknown
How this service works
Is this IPv4 address listed on backscatterer (ips.backscatterer.org)? Performs the DNSBL query (reversed octets under ips.backscatterer.org, via Cloudflare DoH) and returns listed yes/no with the return codes and, where the list publishes one, the reason text. One list, one precise answer. $0.01 per lookup.
Output
Returns whether the queried IPv4 address is listed on ips.backscatterer.org (yes/no), the DNSBL return codes from the DNS lookup, and any reason text published by the list for that listing.
Example use cases
Mail server deliverability check
“Before I send our email campaign, can you check if our mail server IP 198.51.100.22 is listed on Backscatterer? I need to know if it's flagged and why.”
Incoming email sender reputation
“An email came in from 203.0.113.87 and it looks suspicious — can you check if that IP is on the Backscatterer blacklist and what the return code says?”
New server IP vetting
“We just got a new dedicated server with IP 192.0.2.10 — can you verify it's not listed on the Backscatterer DNSBL before we start using it for outbound mail?”
Technical details
Endpoint
GEThttps://ip.intel.rallylive.ca/ip/blacklist/backscatterer?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need to check the Backscatterer list (ips.backscatterer.org), which focuses on IPs generating backscatter spam. Prefer this over generic multi-list DNSBL checkers when you need a precise, single-list answer with return codes and reason text for Backscatterer specifically.
Side effects
- Invalid or non-public IPv4 address returns an error
- DNS resolution failure via Cloudflare DoH may result in a lookup error
- IPv6 addresses are not supported (IPv4 only)
- Network timeout when querying the DNSBL zone
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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