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Spaceflight News vs Umeå Open Data

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

APISpaceflight NewsNEW—Umeå Open DataNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (links/metadata for third-party news)Varies by dataset (municipal open data; see portal)
Free tierFree — no keyFree — open data portal, no key
Rate limitUnpublished1000 req/window · 999 remaining · resets 2026-07-09 00:00:00+00:00
In directory since2026-07-052026-07-05
operationalpartialdownno data

Spaceflight News vs Umeå Open Data: common questions

Which is more reliable, Spaceflight News or Umeå Open Data?

On our scheduled checks, Umeå Open Data leads on measured uptime — Spaceflight News at —% versus Umeå Open Data 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 Spaceflight News and Umeå Open Data need an API key?

Neither needs a paid key — Spaceflight News is callable with no signup, and Umeå Open Data is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Spaceflight News and Umeå Open Data from the browser?

Yes — both Spaceflight News and Umeå Open Data 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 Spaceflight News and Umeå Open Data free for commercial use?

Spaceflight News has unclear commercial terms, and Umeå Open Data 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.