{"uid":"cap_OvDpGFYi93-7EvT1OGyOm","slug":"http-compression-check-e76dfc34","name":"HTTP Compression Check","description":"HTTP compression check: whether a page is served with gzip, brotli or zstd, the content-encoding actually negotiated, transfer size vs decoded size where available, and the vary header. Performance sanity check for any site. $0.01 per page.","url":"https://intel.rallylive.ca/site/compression","method":"GET","headers":{},"bodySchema":{"type":"object","$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_AgCvesQfbh700tDqqkp1C","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 webpage is served with gzip, brotli, or zstd compression, reporting the negotiated content-encoding, transfer vs decoded size, and Vary header.","exampleAgentPrompt":"Can you check whether https://example.com is actually serving compressed responses — I want to know if it's using gzip, brotli, or zstd, and how much smaller the transfer size is compared to the decoded size?","exampleUseCases":[{"title":"Pre-launch performance audit","prompt":"Before we go live, can you check if https://myapp.com is properly serving compressed content? I want to know the encoding type and whether transfer size is meaningfully smaller than decoded size."},{"title":"Debugging missing compression on CDN","prompt":"Something seems off — can you check whether https://cdn.acmecorp.com/assets/main.js is actually being compressed? Tell me what content-encoding is negotiated and what the Vary header looks like."},{"title":"Competitor benchmark compression check","prompt":"Can you check what HTTP compression https://competitor-site.com is using? I want to see if they're on brotli or still just gzip, and get the transfer vs decoded size breakdown."}],"resultDescription":"Returns whether the page is served with gzip, brotli, or zstd compression (or none), the actual content-encoding header negotiated, transfer size versus decoded size where available, and the Vary header — giving a clear performance sanity check for the URL.","failureModes":["URL is unreachable or returns a non-200 status","Server does not respond to negotiated encoding headers","Page blocks automated requests (bot detection, firewall)","URL requires authentication, returning 401 or 403","Very large pages may time out before full response is received"],"whenToPreferThis":"Use this endpoint when you need a quick, automated HTTP-level check of compression settings for any public URL — especially useful for performance audits, CI/CD pipeline checks, or verifying CDN/server configuration. Prefer this over manual browser DevTools inspection when you need programmatic, repeatable results at scale or from an agent workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T13:13:01.480Z","isFirstParty":false}