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Spaceflight News vs Umeå Open Data

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

APISpaceflight NewsHEALTHY63Umeå Open DataHEALTHY55
Uptime · 30d
Uptime · 90d95.1%89.2%
Uptime · 30d91.7%81.7%
P50 · ms8641445
P95 · ms44974863
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, Spaceflight News leads on measured uptime — Spaceflight News at 95.1% versus Umeå Open Data at 89.2% 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, Spaceflight News or Umeå Open Data?

Spaceflight News has the lower median latency in our checks — Spaceflight News responds in 864 ms versus Umeå Open Data at 1445 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 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.