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Tempo Halowerk – Script TTFB Check
x402
Tempo Halowerk – Script TTFB Check is a paid API for AI agents from tempo.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Measures the Time to First Byte (TTFB) for a script resource at a given public URL, optionally targeted by CSS selector.
Price / call$0.001
Success—
StatusUnknown
How this service works
Prüft am Objekt skript den Befund Zeit bis zum ersten Byte.
Output
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.
Example use cases
CDN latency audit for JS bundle
“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.”
Third-party script performance check
“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.”
Performance regression investigation
“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?”
Technical details
Endpoint
POSThttps://tempo.halowerk.com/v1/pruef/tempo/ttfb/skriptWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| ziel | — |
Tags
x402
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