Archive.org vs Spaceflight News

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

Uptime · 30d
Uptime · 90d97.1%95.1%
Uptime · 30d96.7%91.7%
P50 · ms813864
P95 · ms27644497
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (rights vary per item)Unverified (links/metadata for third-party news)
Free tierFree — limits not publishedFree — no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Archive.org vs Spaceflight News: common questions

Which is more reliable, Archive.org or Spaceflight News?

On our scheduled checks, Archive.org leads on measured uptime — Archive.org at 97.1% versus Spaceflight News at 95.1% 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, Archive.org or Spaceflight News?

Archive.org has the lower median latency in our checks — Archive.org responds in 813 ms versus Spaceflight News at 864 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 Archive.org and Spaceflight News need an API key?

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

Can I call Archive.org and Spaceflight News from the browser?

Yes — both Archive.org and Spaceflight News 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 Archive.org and Spaceflight News free for commercial use?

Archive.org has unclear commercial terms, and Spaceflight News 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.