IP2Location vs ViaCep
Same instrument, two spec sheets — measured, not claimed.
IP2Location vs ViaCep: common questions
Which is more reliable, IP2Location or ViaCep?
On our scheduled checks, IP2Location leads on measured uptime — IP2Location at 100% versus ViaCep at 98.0% 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, IP2Location or ViaCep?
IP2Location has the lower median latency in our checks — IP2Location responds in 131 ms versus ViaCep at 651 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 IP2Location and ViaCep need an API key?
ViaCep needs no key, while IP2Location requires a free API key. If you want to start calling without signup, reach for ViaCep first.
Can I call IP2Location and ViaCep from the browser?
Only ViaCep is browser-friendly — it returns CORS headers over HTTPS. IP2Location needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are IP2Location and ViaCep free for commercial use?
IP2Location has unclear commercial terms, and ViaCep 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.