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IPinfo vs Genderize.io

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

APIIPinfoNEW—Genderize.ioNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierKeyless /json works with limits; free token recommended (IPinfo Lite offers higher/unlimited access with a token)Keyless usage limited (x-rate-limit-limit: 25 observed); 2,500 names/mo with a free key
Rate limitKeyless/unauthenticated access is rate-limited; numeric caps not stated on the developers pageKeyless cap 25 per x-rate-limit-limit header; remaining/reset exposed in response headers
In directory since2026-07-052026-07-05
operationalpartialdownno data

IPinfo vs Genderize.io: common questions

Which is more reliable, IPinfo or Genderize.io?

On our scheduled checks, Genderize.io leads on measured uptime — IPinfo at —% versus Genderize.io 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 IPinfo and Genderize.io need an API key?

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

Can I call IPinfo and Genderize.io from the browser?

Yes — both IPinfo and Genderize.io 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 IPinfo and Genderize.io free for commercial use?

IPinfo has unclear commercial terms, and Genderize.io 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.