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Ignav Flight API vs Road511

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

APIIgnav Flight APINEW—Road511NEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublished70 req/window · 69 remaining · resets 1783522019
In directory since2026-07-052026-07-05
operationalpartialdownno data

Ignav Flight API vs Road511: common questions

Which is more reliable, Ignav Flight API or Road511?

On our scheduled checks, Road511 leads on measured uptime — Ignav Flight API at —% versus Road511 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 Ignav Flight API and Road511 need an API key?

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

Can I call Ignav Flight API and Road511 from the browser?

Neither sends browser-friendly CORS headers reliably, so call Ignav Flight API and Road511 from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Ignav Flight API and Road511 free for commercial use?

Ignav Flight API has unclear commercial terms, and Road511 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.