{"uid":"cap_r_JWR6r6xXqcQ3_7dzyVn","slug":"ip-listed-on-backscatterer-dnsbl-02b6a77b","name":"IP Listed on Backscatterer DNSBL","description":"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. $0.01 per lookup.","url":"https://ip.intel.rallylive.ca/ip/blacklist/backscatterer?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gyJTpTYzs6RNoMQZitbbE","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a given IPv4 address is listed on the Backscatterer DNSBL (ips.backscatterer.org) and returns listed status, return codes, and reason text.","exampleAgentPrompt":"Can you check if 203.0.113.45 is listed on the Backscatterer DNSBL and tell me the return code and any reason they give?","exampleUseCases":[{"title":"Mail server deliverability check","prompt":"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."},{"title":"Incoming email sender reputation","prompt":"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?"},{"title":"New server IP vetting","prompt":"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?"}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:49:11.099Z","isFirstParty":false,"canonicalSlug":"ip-listed-on-backscatterer-dnsbl-02b6a77b"}