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NHTSA vs Transport for The Netherlands

Same instrument, two spec sheets — measured, not claimed.

APINHTSANEW—Transport for The NetherlandsNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesno
Card requirednono
Commercial useyesunclear
Data licensePublic domain (U.S. Government work)Unverified
Free tierFree, no keyFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

NHTSA vs Transport for The Netherlands: common questions

Which is more reliable, NHTSA or Transport for The Netherlands?

On our scheduled checks, Transport for The Netherlands leads on measured uptime — NHTSA at —% versus Transport for The Netherlands at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do NHTSA and Transport for The Netherlands need an API key?

Neither needs a paid key — NHTSA is callable with no signup, and Transport for The Netherlands is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call NHTSA and Transport for The Netherlands from the browser?

Only NHTSA is browser-friendly — it returns CORS headers over HTTPS. Transport for The Netherlands needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are NHTSA and Transport for The Netherlands free for commercial use?

NHTSA allows commercial use on its free tier, and Transport for The Netherlands has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.