{"uid":"cap_bxfVE3SS4YoVdEQi8s_c9","slug":"link-rel-dns-prefetch-11c3b8c4","name":"link-rel-dns-prefetch","description":"The rel=\"dns-prefetch\" links of a page: every matching <link>/<a> with href, resolved to absolute URLs, with a count. Link-relationship discovery. $0.01 per page.","url":"https://site.intel.rallylive.ca/site/link-rel/dns-prefetch?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_Gi5FhP_e3Ia6JI3iBP3Ni","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":"Extracts all dns-prefetch link relationships from a web page, returning resolved absolute URLs and a count","exampleAgentPrompt":"Can you find all the dns-prefetch link relationships on https://example.com and give me the full list of resolved URLs it's prefetching DNS for?","exampleUseCases":[{"title":"Third-party dependency audit","prompt":"I want to know which external domains https://shopify.com is prefetching DNS for — can you pull all the dns-prefetch links from their homepage and list the resolved URLs?"},{"title":"Competitor technology intelligence","prompt":"Can you check https://stripe.com and tell me every domain they're hinting at with dns-prefetch links? I'm trying to understand what third-party services they rely on."},{"title":"Site performance resource hint check","prompt":"Pull the dns-prefetch link tags from https://nytimes.com for me — I want to see how many there are and what URLs they resolve to."}],"resultDescription":"A list of all <link rel='dns-prefetch'> and matching <a> elements found on the page, with each href resolved to an absolute URL, plus a total count of matching links.","failureModes":["Page URL not provided or malformed — request fails with input validation error","Target page returns non-200 HTTP status — no links extracted","Target page has no dns-prefetch link elements — returns empty list with count 0","Target page blocks scraping via bot detection — may return empty or error","Relative hrefs that cannot be resolved to absolute URLs may be skipped"],"whenToPreferThis":"Use this endpoint when you need to specifically discover DNS prefetch resource hints declared in a page's HTML, for tasks like auditing third-party dependencies, understanding a site's performance optimization strategy, or building an inventory of external domains a site preloads. Prefer this over generic link extractors when your focus is strictly on the dns-prefetch relationship type.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T18:59:39.358Z","isFirstParty":false,"canonicalSlug":"link-rel-dns-prefetch-11c3b8c4"}