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FingerprintJS Pro vs dead-drop

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

APIFingerprintJS ProUNMONITORED—dead-dropNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublished100 req/window · 100 remaining · resets 1783513841
In directory since2026-07-052026-07-05
operationalpartialdownno data

FingerprintJS Pro vs dead-drop: common questions

Which is more reliable, FingerprintJS Pro or dead-drop?

Only dead-drop is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do FingerprintJS Pro and dead-drop need an API key?

dead-drop needs no key, while FingerprintJS Pro requires a free API key. If you want to start calling without signup, reach for dead-drop first.

Can I call FingerprintJS Pro and dead-drop from the browser?

Yes — both FingerprintJS Pro and dead-drop 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 FingerprintJS Pro and dead-drop free for commercial use?

FingerprintJS Pro has unclear commercial terms, and dead-drop 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.