Icanhazip vs User Agent Lookup API

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

Uptime · 30d
Uptime · 90d26.5%100%
Uptime · 30d0.0%100%
P50 · ms328426
P95 · ms959764
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Icanhazip vs User Agent Lookup API: common questions

Which is more reliable, Icanhazip or User Agent Lookup API?

On our scheduled checks, User Agent Lookup API leads on measured uptime — Icanhazip at 26.5% versus User Agent Lookup API at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Icanhazip or User Agent Lookup API?

Icanhazip has the lower median latency in our checks — Icanhazip responds in 328 ms versus User Agent Lookup API at 426 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Icanhazip and User Agent Lookup API need an API key?

Neither needs a paid key — Icanhazip is callable with no signup, and User Agent Lookup API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Icanhazip and User Agent Lookup API from the browser?

Only Icanhazip is browser-friendly — it returns CORS headers over HTTPS. User Agent Lookup API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Icanhazip and User Agent Lookup API free for commercial use?

Icanhazip has unclear commercial terms, and User Agent Lookup API 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.