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tempo.halowerk.com – Font Total Load Time Check
x402
tempo.halowerk.com – Font Total Load 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).
Checks and measures the total load time (Gesamtladezeit) for font resources on a given URL or web object.
Price / call$0.001
Success—
StatusUnknown
How this service works
Prüft am Objekt schrift den Befund Gesamtladezeit.
Output
Returns a performance finding (Befund) for the total load time of font resources on the target URL or element, including timing metrics indicating how long fonts took to fully load.
Example use cases
Font performance audit for redesign
“I'm redesigning my site at https://mybrand.com — can you check how long the fonts are taking to load in total so I know if they're a bottleneck?”
Monitoring font load time on a specific element
“Check the total font load time on https://shop.example.com using the CSS selector '.hero-heading' — I want to see if that specific font is slow.”
Comparing font load times before and after optimization
“Can you measure the total font load time on https://staging.mysite.com and compare it against https://mysite.com so I can see if my optimization made a difference?”
Technical details
Endpoint
POSThttps://tempo.halowerk.com/v1/pruef/tempo/gesamtzeit/schriftWhen to prefer
Use this endpoint when you specifically need to measure the total end-to-end load time of font resources on a page, as opposed to time-to-first-byte or connection setup time for fonts. Prefer this over general page speed tools when font loading is the specific performance bottleneck under investigation. It is particularly useful when auditing web typography performance or diagnosing render-blocking font issues.
Side effects
- Target URL is unreachable or returns a non-200 status — endpoint may return an error or null result
- Invalid CSS selector provided — may return first matching element or an error
- Private/non-public IP addresses or intranet URLs rejected
- Malformed URL input causing validation failure
- Font resources blocked by CORS or firewall may result in incomplete timing data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| ziel | — |
Tags
x402
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