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IP Listed on SORBS Web (web.dnsbl.sorbs.net) Lookup
x402
IP Listed on SORBS Web (web.dnsbl.sorbs.net) Lookup is a paid API for AI agents from ip.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).
Checks whether a given IPv4 address is listed on the SORBS Web DNSBL (web.dnsbl.sorbs.net) 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 sorbs web (web.dnsbl.sorbs.net)? Performs the DNSBL query (reversed octets under web.dnsbl.sorbs.net, 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 a yes/no listed status for the queried IPv4 address on web.dnsbl.sorbs.net, along with the DNSBL return codes and, where available, a human-readable reason text explaining why the IP is listed.
Example use cases
Pre-send email deliverability check
“Before I send a bulk email campaign from 198.51.100.10, can you check if that IP is on the SORBS Web DNSBL so I know if it's likely to be blocked?”
Investigate suspicious inbound traffic
“I'm seeing unusual traffic from 203.0.113.55 — can you check whether that IP is listed on the SORBS Web blacklist and what the reason is?”
Server IP reputation audit
“We're setting up a new web server at 192.0.2.77 and I need to confirm it's not already on the SORBS Web blocklist before going live.”
Technical details
Endpoint
GEThttps://ip.intel.rallylive.ca/ip/blacklist/sorbs-web?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a precise, single-list check specifically against the SORBS Web DNSBL (web.dnsbl.sorbs.net). It is ideal when you want a definitive listed/not-listed answer for that particular list rather than a multi-list aggregated score. Prefer it over generic IP reputation APIs when SORBS Web list membership is the specific criterion (e.g., for email filtering pipelines or web server vetting workflows).
Side effects
- Invalid or non-routable IPv4 address provided — returns an error or no result
- DNS resolution failure via Cloudflare DoH — may return a network error
- IP not listed — returns listed: false with no reason text
- Malformed query — missing required IP parameter causes a 400-level error
- Temporary SORBS list unavailability — may cause lookup failure or timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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