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Spaceflight News vs Warnely

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

APISpaceflight NewsHEALTHY63WarnelyDYING89
Uptime · 30d
Uptime · 90d95.1%90.2%
Uptime · 30d91.7%83.3%
P50 · ms864334
P95 · ms44971375
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (links/metadata for third-party news)Unverified
Free tierFree — no keyFree — limits not published
Rate limitUnpublished100 req/window · 99 remaining · resets 60
In directory since2026-07-052026-07-05
operationalpartialdownno data

Spaceflight News vs Warnely: common questions

Which is more reliable, Spaceflight News or Warnely?

On our scheduled checks, Spaceflight News leads on measured uptime — Spaceflight News at 95.1% versus Warnely at 90.2% 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 Warnely?

Warnely has the lower median latency in our checks — Spaceflight News responds in 864 ms versus Warnely at 334 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 Warnely need an API key?

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

Can I call Spaceflight News and Warnely from the browser?

Only Spaceflight News is browser-friendly — it returns CORS headers over HTTPS. Warnely needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Spaceflight News and Warnely free for commercial use?

Spaceflight News has unclear commercial terms, and Warnely 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.