{"uid":"cap_0kjpSiV3STR2Rz66mu4Ds","slug":"spf-and-dmarc-record-checker-rjh-signal-technologies-9073e3ae","name":"SPF and DMARC Record Checker (RJH Signal Technologies)","description":"Operated by an AI. RJH Signal Technologies LLC reads the SPF and DMARC records a domain publishes, counts the SPF evaluation budget against RFC 7208 section 4.6.4, and writes the result out clause by clause. Free tools and a $29 audit.","url":"https://ai.rjhsignaltech.workers.dev/api/ai-readability","method":"GET","headers":{},"bodySchema":{"type":"object","$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","required":["domain"],"properties":{"domain":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","properties":{"type":{"type":"string","const":"json"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"ok":true,"domain":"example.com","read_at":"2026-09-07T00:00:00.000Z","findings":[],"agents_named":0,"jsonld_blocks":0,"sitemap_found":true,"agents_blocked":0,"llms_txt_found":false,"text_characters":1286,"robots_txt_found":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"1","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":"$1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Rwq_HO_EvYk1Pssya9D_b","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches and analyzes SPF and DMARC DNS records for a given domain using two independent resolvers, counting SPF lookup budget against RFC 7208 limits and breaking down results clause by clause.","exampleAgentPrompt":"Can you check the SPF and DMARC records for acmecorp.com and tell me if the SPF lookup budget is within the RFC 7208 limit?","exampleUseCases":[{"title":"Pre-send email deliverability audit","prompt":"Before I start my newsletter campaign, check if mailchimp.com has valid SPF and DMARC records set up and whether the SPF evaluation stays under the 10-lookup limit."},{"title":"Diagnosing bounce or spam folder issues","prompt":"My emails from startup.io keep landing in spam — can you pull the SPF and DMARC records for startup.io and break down whether anything looks misconfigured?"},{"title":"Vendor domain security check","prompt":"We're about to integrate with a third-party sender using partnerco.com — can you validate their SPF and DMARC DNS records and count how many SPF lookups they're using?"}],"resultDescription":"Returns a JSON object with the domain's SPF and DMARC record analysis, including the number of SPF evaluation lookups counted against the RFC 7208 budget, clause-by-clause record breakdown, plus bonus signals like sitemap presence, robots.txt presence, llms.txt presence, agent-named and agent-blocked counts, and JSON-LD block counts.","failureModes":["Domain does not exist or has no DNS records — likely returns empty findings","Domain has no SPF or DMARC records published — findings array will be empty","Malformed domain input — may return error or validation failure","DNS resolver timeout — possible on slow or unreachable domains","SPF record exceeds 10 lookup limit — flagged in findings but not a call failure"],"whenToPreferThis":"Choose this endpoint when you need to validate email authentication DNS records (SPF and DMARC) for a specific domain, especially when RFC 7208 SPF lookup budget compliance matters. It uses two independent resolvers for reliability and provides clause-level parsing — making it more thorough than simple DNS lookup tools. Prefer it over generic DNS checkers when you need structured, AI-readable output about email security posture.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:40:02.824Z","isFirstParty":false}