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Road511 vs Transport for Norway

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

APIRoad511DEAD0Transport for NorwayHEALTHY94
Uptime · 30d
Uptime · 90d27.5%100%
Uptime · 30d0.0%100%
P50 · ms1128432
P95 · ms24581762
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedNorwegian Licence for Open Government Data (NLOD)
Free tierFree tier — API key requiredFree — open data, no key; ET-Client-Name header requested
Rate limit70 req/window · 69 remaining · resets 1783522019Rate-limited for unidentified consumers (no numeric threshold published)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Road511 vs Transport for Norway: common questions

Which is more reliable, Road511 or Transport for Norway?

On our scheduled checks, Transport for Norway leads on measured uptime — Road511 at 27.5% versus Transport for Norway at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Road511 or Transport for Norway?

Transport for Norway has the lower median latency in our checks — Road511 responds in 1128 ms versus Transport for Norway at 432 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Road511 and Transport for Norway need an API key?

Transport for Norway needs no key, while Road511 requires a free API key. If you want to start calling without signup, reach for Transport for Norway first.

Can I call Road511 and Transport for Norway from the browser?

Yes — both Road511 and Transport for Norway send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Road511 and Transport for Norway free for commercial use?

Road511 has unclear commercial terms, and Transport for Norway allows commercial use on its free tier. 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.