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Bootprint vs ISRO

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

APIBootprintNEW—ISRONEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Bootprint vs ISRO: common questions

Which is more reliable, Bootprint or ISRO?

On our scheduled checks, ISRO leads on measured uptime — Bootprint at —% versus ISRO 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 Bootprint and ISRO need an API key?

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

Can I call Bootprint and ISRO from the browser?

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

Are Bootprint and ISRO free for commercial use?

Bootprint has unclear commercial terms, and ISRO 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.