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ipify vs Nationalize.io

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

APIipifyHEALTHY—Nationalize.ioNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licensen/aUnverified
Free tierUnlimitedKeyless usage limited (x-rate-limit-limit: 25 observed); 2,500 names/mo with a free key
Rate limitNoneKeyless cap 25 per x-rate-limit-limit header; remaining/reset exposed in response headers
In directory since2026-05-022026-07-05
operationalpartialdownno data

ipify vs Nationalize.io: common questions

Which is more reliable, ipify or Nationalize.io?

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

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

Can I call ipify and Nationalize.io from the browser?

Yes — both ipify and Nationalize.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 ipify and Nationalize.io free for commercial use?

ipify allows commercial use on its free tier, and Nationalize.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.