{"uid":"cap_bc1EFGhjvWkpWEOPO6HS3","slug":"is-dns-hosted-by-1and1-1abb9bdb","name":"is-dns-hosted-by-1and1","description":"Is the domain's DNS hosted by 1and1? Looks up the NS records (Cloudflare DoH) and matches them against 1and1's nameserver patterns, returning yes/no, the nameservers and which ones matched. Vendor detection for sales, migration and security work. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/hosted-by/1and1?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_Gt7U_6k1f_WBbqeSAeMrE","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 domain's DNS is hosted by 1&1 (IONOS) by looking up its NS records via Cloudflare DoH and matching against known 1&1 nameserver patterns, returning yes/no plus matched nameservers.","exampleAgentPrompt":"Can you check whether acmecorp.com has its DNS hosted by 1&1 IONOS — I need to know if they're still on 1and1 nameservers and which ones matched.","exampleUseCases":[{"title":"Sales prospecting for 1and1 customers","prompt":"I'm building a list of potential leads still using 1and1 for DNS hosting — can you check if riverpineconsulting.com is hosted by 1and1 and tell me which nameservers matched?"},{"title":"Pre-migration DNS vendor audit","prompt":"Before we migrate clientdomain.com to Cloudflare, can you confirm whether their DNS is currently hosted by 1and1 and show me their nameservers?"},{"title":"Security vendor detection sweep","prompt":"As part of our security review, I need to know if partnerbrand.com uses 1and1 for DNS hosting — check their NS records and let me know if any match 1and1's patterns."}],"resultDescription":"Returns a yes/no indicator of whether the domain's DNS is hosted by 1&1 (IONOS), the full list of NS records retrieved via Cloudflare DoH, and specifically which nameservers matched known 1&1 nameserver patterns.","failureModes":["Domain does not exist or has no NS records — returns no match with empty nameserver list","Cloudflare DoH is temporarily unavailable — lookup fails with a connectivity or upstream error","Invalid or malformed domain name input — returns an error or no result","Domain uses 1and1 hosting but with custom/white-label nameservers not matching known patterns — false negative"],"whenToPreferThis":"Choose this endpoint when you need a fast, low-cost ($0.01) single-domain check specifically for 1&1 IONOS DNS hosting detection, using Cloudflare DoH for reliable NS lookups. Ideal for sales intelligence pipelines, pre-migration audits, or security reviews where 1and1 vendor identification is the specific goal. Prefer this over generic DNS lookup tools when you need the matched/unmatched nameserver output in a structured yes/no format.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:26.926Z","isFirstParty":false,"canonicalSlug":"is-dns-hosted-by-1and1-1abb9bdb"}