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Tempo Halowerk – iframe Render Start Time Check
x402
Tempo Halowerk – iframe Render Start Time 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-render (render start) of an iframe object on a given web page, returning a performance audit result.
Price / call$0.001
Success—
StatusUnknown
How this service works
Prüft am Objekt iframe den Befund Zeit bis zum sichtbaren Renderstart.
Output
Returns a performance measurement indicating the time elapsed until the iframe element begins its visible render (render start), expressed as a duration metric. This may include timing data scoped to the specific iframe object on the target page.
Example use cases
Diagnose slow iframe on landing page
“My landing page at https://shop.example.com has an embedded payment iframe and users are complaining it feels slow — can you measure the render start time for that iframe and tell me how long it takes to become visible?”
Performance audit before site launch
“Before we go live, check the iframe render start time for https://staging.myapp.io/checkout so I can confirm it meets our performance targets.”
Monitor third-party embed performance
“I've embedded a YouTube iframe on https://myblog.com/video-post — can you measure how long that iframe takes to start rendering so I know if it's hurting page load experience?”
Technical details
Endpoint
POSThttps://tempo.halowerk.com/v1/pruef/tempo/renderstart/iframeWhen to prefer
Use this endpoint when you specifically need to measure the time-to-render-start metric for an iframe element on a public web page. It is distinct from full-page render timing, first contentful paint, or time-to-first-byte checks. Choose this when diagnosing or benchmarking embedded content (third-party widgets, payment forms, video embeds) and you need iframe-scoped render start latency rather than general page performance.
Side effects
- Target URL is not publicly accessible — returns an error or timeout
- No iframe found on the target page — audit returns no result or an object-not-found error
- CSS selector matches zero or multiple elements — first match is used or error returned
- Invalid or malformed URL input — validation error
- Page requires authentication or blocks headless browsers — measurement fails or returns incomplete data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| ziel | — |
Tags
x402
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