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FingerprintJS Pro vs IP Proxy Detection

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

APIFingerprintJS ProNEW—IP Proxy DetectionNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
HTTPSyesno
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

FingerprintJS Pro vs IP Proxy Detection: common questions

Which is more reliable, FingerprintJS Pro or IP Proxy Detection?

On our scheduled checks, IP Proxy Detection leads on measured uptime — FingerprintJS Pro at —% versus IP Proxy Detection 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 FingerprintJS Pro and IP Proxy Detection need an API key?

IP Proxy Detection needs no key, while FingerprintJS Pro requires a free API key. If you want to start calling without signup, reach for IP Proxy Detection first.

Can I call FingerprintJS Pro and IP Proxy Detection from the browser?

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

Are FingerprintJS Pro and IP Proxy Detection free for commercial use?

FingerprintJS Pro has unclear commercial terms, and IP Proxy Detection 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.