{"uid":"cap_hgOyu__tNVPRA7fLmxTNo","slug":"tempo-halowerk-com-font-transfer-size-check-44b267c5","name":"tempo.halowerk.com Font Transfer Size Check","description":"Prüft am Objekt schrift den Befund übertragene Bytemenge.","url":"https://tempo.halowerk.com/v1/pruef/tempo/gewicht/schrift","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"ziel":{"oneOf":[{"type":"string","maxLength":2048,"minLength":1,"description":"Öffentliche HTTP(S)-Adresse; bei DNS-Befunden Domain oder öffentliche IP."},{"type":"object","required":["adresse"],"properties":{"adresse":{"type":"string","maxLength":2048,"minLength":1},"selektor":{"type":"string","maxLength":240,"minLength":1,"description":"CSS-Selektor: genau ein Objekt, sonst erster Treffer des Objektfilters."},"vergleich":{"type":"string","maxLength":2048,"description":"Öffentliche Vergleichsadresse für Link-, Sitemap- oder Sprachbefunde."},"user_agent":{"type":"string","pattern":"^[A-Za-z0-9_-]{1,80}$"},"dkim_selektor":{"type":"string","pattern":"^[A-Za-z0-9_-]{1,63}$"}},"additionalProperties":false}]}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_NUF5CCI0J4qpdTsCBixBv","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks the transferred byte size (payload weight) of a font resource at a given URL.","exampleAgentPrompt":"Can you check how many bytes are being transferred when loading the web font at https://example.com/fonts/myfont.woff2 and tell me if it's too heavy?","exampleUseCases":[{"title":"Font weight audit for performance report","prompt":"I'm putting together a web performance report — can you check the transferred byte size of the font file at https://myshop.com/assets/fonts/brand.woff2 and tell me how heavy it is?"},{"title":"Monitoring font size after compression update","prompt":"I just applied Brotli compression to our fonts — can you measure the transferred byte size of https://myblog.com/fonts/heading.woff2 to verify it's actually smaller now?"},{"title":"Diagnosing slow font load on a page","prompt":"My page feels slow and I suspect the fonts are too large. Can you check the transferred size of the font loaded via the first @font-face on https://portfolio.example.com and tell me how big it is?"}],"resultDescription":"Returns a performance finding (Befund) indicating the transferred byte size (Bytemenge/Gewicht) of the specified font resource, enabling assessment of whether the font payload is appropriately sized for web performance.","failureModes":["URL is not publicly accessible — returns error or no result","Target resource is not a font file — finding may be invalid or empty","CSS selector matches no element or multiple elements — first match used or error returned","DNS resolution failure for the provided domain","Request timeout if the remote server is slow to respond","Invalid URL format exceeding maxLength of 2048 characters"],"whenToPreferThis":"Use this endpoint when you specifically need to measure the transferred byte size of a font resource (woff, woff2, ttf, etc.) at a public URL. It is purpose-built for font payload weight checks as part of a web performance audit, distinct from sibling endpoints that measure connection time or TTFB for fonts, or that analyze images and scripts. Prefer this when diagnosing whether a font file is too large or verifying compression has reduced font payload size.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T12:43:11.176Z","isFirstParty":false}