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Spaceflight News vs The Guardian

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

APISpaceflight NewsNEW—The GuardianNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (links/metadata for third-party news)Unverified
Free tierFree — no keyFree developer key — registration required
Rate limitUnpublished5000 calls/day (developer tier)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Spaceflight News vs The Guardian: common questions

Which is more reliable, Spaceflight News or The Guardian?

On our scheduled checks, The Guardian leads on measured uptime — Spaceflight News at —% versus The Guardian 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 The Guardian need an API key?

Spaceflight News needs no key, while The Guardian requires a free API key. If you want to start calling without signup, reach for Spaceflight News first.

Can I call Spaceflight News and The Guardian from the browser?

Yes — both Spaceflight News and The Guardian 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 The Guardian free for commercial use?

Spaceflight News has unclear commercial terms, and The Guardian 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.