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Visitor Statistics API vs What3Words

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

APIVisitor Statistics APINEW—What3WordsNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Visitor Statistics API vs What3Words: common questions

Which is more reliable, Visitor Statistics API or What3Words?

On our scheduled checks, What3Words leads on measured uptime — Visitor Statistics API at —% versus What3Words 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 Visitor Statistics API and What3Words need an API key?

Visitor Statistics API needs no key, while What3Words requires a free API key. If you want to start calling without signup, reach for Visitor Statistics API first.

Can I call Visitor Statistics API and What3Words from the browser?

Neither sends browser-friendly CORS headers reliably, so call Visitor Statistics API and What3Words from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Visitor Statistics API and What3Words free for commercial use?

Visitor Statistics API has unclear commercial terms, and What3Words 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.