{"uid":"cap_yXgnQaRxQZyvKVJ9-_8Yu","slug":"dkim-selector-ctct2-lookup-0b3221bd","name":"DKIM Selector ctct2 Lookup","description":"DKIM public key for selector \"ctct2\" of a domain: looks up ctct2._domainkey.<domain> (TXT, Cloudflare DoH) and parses v=, k=, key type, public-key length, testing flag and whether the key is revoked (empty p=). Confirms that mail signed with the ctct2 selector will verify. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/dkim/ctct2?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_1fvHbacGJRZkJ-evtxX9F","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":"Looks up and parses the DKIM public key for the 'ctct2' selector (used by Constant Contact) of a given domain via Cloudflare DNS-over-HTTPS","exampleAgentPrompt":"Can you check whether the DKIM ctct2 selector is properly configured for acme.com — I want to know if the public key is valid, what type and length it is, and whether it's been revoked?","exampleUseCases":[{"title":"Verify Constant Contact DKIM before campaign","prompt":"We're about to send a big email campaign through Constant Contact — can you check that the ctct2 DKIM record is properly set up for our domain marketingpro.com and confirm the key isn't revoked or in testing mode?"},{"title":"Diagnose DKIM failures for Constant Contact","prompt":"Our Constant Contact emails are failing DKIM verification — can you look up the ctct2 DKIM selector for brightwave.io and tell me the key type, length, and whether anything looks wrong with the record?"},{"title":"Audit email authentication across domains","prompt":"I need to audit our email setup — check the ctct2 DKIM record for clientbrand.com and let me know if the public key is present and valid or if it's been revoked."}],"resultDescription":"Returns parsed details from the ctct2._domainkey.<domain> TXT record including: DKIM version (v=), key type (k=), public key length in bits, whether the key is revoked (empty p= field), and whether the domain is in testing mode. Confirms whether mail signed with the ctct2 selector will successfully verify.","failureModes":["Domain has no ctct2._domainkey TXT record — returns record not found","DNS resolution failure via Cloudflare DoH — network or upstream error","Malformed DKIM TXT record that cannot be parsed — parse error returned","Domain itself does not exist — NXDOMAIN response","Key is present but revoked (empty p=) — reported as revoked rather than valid"],"whenToPreferThis":"Use this endpoint when you specifically need to verify the 'ctct2' DKIM selector, which is the selector used by Constant Contact for customer email sending. Choose this over generic DNS TXT lookup tools because it parses and interprets all DKIM record fields (key type, length, revocation status, testing flag) rather than returning raw DNS data. Ideal for email deliverability audits, Constant Contact integration checks, or automated monitoring of DKIM health.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:18.563Z","isFirstParty":false,"canonicalSlug":"dkim-selector-ctct2-lookup-0b3221bd"}