RestoSignals vs Spaceflight News
Same instrument, two spec sheets — measured, not claimed.
RestoSignals vs Spaceflight News: common questions
Which is more reliable, RestoSignals or Spaceflight News?
On our scheduled checks, RestoSignals leads on measured uptime — RestoSignals at 100% versus Spaceflight News at 94.4% 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, RestoSignals or Spaceflight News?
Spaceflight News has the lower median latency in our checks — RestoSignals responds in 748 ms versus Spaceflight News at 505 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 RestoSignals and Spaceflight News need an API key?
Spaceflight News needs no key, while RestoSignals requires a free API key. If you want to start calling without signup, reach for Spaceflight News first.
Can I call RestoSignals and Spaceflight News from the browser?
Only Spaceflight News is browser-friendly — it returns CORS headers over HTTPS. RestoSignals needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are RestoSignals and Spaceflight News free for commercial use?
RestoSignals 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.