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Proweblook IP Checker vs GeoJS

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

APIProweblook IP CheckerREACHABLE—GeoJSNEW—
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, no API key required
Rate limitUnpublishedUnpublished (no enforced limit stated)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Proweblook IP Checker vs GeoJS: common questions

Which is more reliable, Proweblook IP Checker or GeoJS?

On our scheduled checks, GeoJS leads on measured uptime — Proweblook IP Checker at —% versus GeoJS 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 Proweblook IP Checker and GeoJS need an API key?

GeoJS needs no key, while Proweblook IP Checker requires a free API key. If you want to start calling without signup, reach for GeoJS first.

Can I call Proweblook IP Checker and GeoJS from the browser?

Yes — both Proweblook IP Checker and GeoJS 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 Proweblook IP Checker and GeoJS free for commercial use?

Proweblook IP Checker has unclear commercial terms, and GeoJS 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.