{"uid":"cap_Dkeg45EoB7tizuRzvh_pl","slug":"tempo-halowerk-script-ttfb-check-cfa1a097","name":"Tempo Halowerk – Script TTFB Check","description":"Prüft am Objekt skript den Befund Zeit bis zum ersten Byte.","url":"https://tempo.halowerk.com/v1/pruef/tempo/ttfb/skript","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_Eer-5Oi7GrmRO6I8yChT1","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":"Measures the Time to First Byte (TTFB) for a script resource at a given public URL, optionally targeted by CSS selector.","exampleAgentPrompt":"Can you check the Time to First Byte for the script at https://cdn.example.com/app.js and tell me how fast the server is responding?","exampleUseCases":[{"title":"CDN latency audit for JS bundle","prompt":"Check the Time to First Byte for our main JavaScript bundle at https://assets.myapp.com/bundle.js — I want to know if the CDN is responding quickly."},{"title":"Third-party script performance check","prompt":"Probe the TTFB on this analytics script https://scripts.thirdparty.com/tracker.js — I need to know if it's slowing down our page because of a slow first-byte response."},{"title":"Performance regression investigation","prompt":"Can you measure the Time to First Byte for the script at https://cdn.example.com/vendor.js using the CSS selector script[src*='vendor'] so we can track down why our page feels sluggish after the last deploy?"}],"resultDescription":"Returns the measured Time to First Byte (TTFB) for the targeted script resource, indicating how quickly the server begins delivering data after receiving a request. The finding includes timing data that can be used to diagnose server, network, or CDN latency issues specific to script assets.","failureModes":["URL is not publicly reachable — endpoint cannot connect to the target","URL does not resolve to a script resource — wrong resource type targeted","CSS selector matches zero elements — no script found at given selector","Target host blocks automated probes — connection refused or timeout","Invalid URL format provided — schema validation error","Network congestion causes inconsistent TTFB readings"],"whenToPreferThis":"Use this endpoint when you specifically need to measure Time to First Byte for a script (JavaScript) resource, as opposed to images, fonts, videos, or full page loads. It is the right choice when diagnosing slow JS delivery from CDNs, third-party script hosts, or origin servers, and when you want granular TTFB data isolated to a single script asset rather than overall page load metrics.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:03:34.410Z","isFirstParty":false}