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tempo.halowerk.com Image TTFB Checker
x402
tempo.halowerk.com Image TTFB Checker 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 specific image resource at a given URL, reporting how long the server takes to begin delivering the image.
Price / call$0.001
Success—
StatusUnknown
How this service works
Prüft am Objekt bild den Befund Zeit bis zum ersten Byte.
Output
Returns a performance finding (Befund) for the specified image resource, indicating the measured Time to First Byte (TTFB) — the elapsed time from initiating an HTTP request to the image URL until the first byte of the response is received. This helps identify server latency, slow origin response, or CDN delivery issues for image assets.
Example use cases
Diagnosing slow product image loading
“Our e-commerce site seems slow — can you measure the TTFB for our main product image at https://shop.mystore.com/images/product-main.jpg and tell me how long it takes before bytes start arriving?”
Monitoring CDN image delivery performance
“I want to check if our CDN is delivering images quickly — can you probe the time to first byte for https://cdn.mybrand.com/assets/banner.png and report the result?”
Pre-launch image performance audit
“Before we go live, can you test how fast our server responds when loading the logo image at https://staging.mysite.com/img/logo.png? I need the TTFB measurement to make sure it's under 200ms.”
Technical details
Endpoint
POSThttps://tempo.halowerk.com/v1/pruef/tempo/ttfb/bildWhen to prefer
Use this endpoint when you specifically need to measure the Time to First Byte for an image resource (as opposed to a full page, video, script, or font). It is ideal for diagnosing image-specific server latency, validating CDN performance for image assets, or auditing individual image URLs in a performance pipeline. For page-level TTFB or other resource types (video, font, script), use the corresponding sibling endpoints on tempo.halowerk.com.
Side effects
- Invalid or unreachable image URL returns an error indicating the target could not be fetched
- Private or non-public IP addresses are rejected as invalid targets
- CSS selector matching no image element may fall back to first matching element or return an error
- Timeouts if the remote server is unresponsive
- Malformed URL input fails schema validation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| ziel | — |
Tags
x402
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