FreeGeoIP vs ViaCep
Same instrument, two spec sheets — measured, not claimed.
FreeGeoIP vs ViaCep: common questions
Which is more reliable, FreeGeoIP or ViaCep?
On our scheduled checks, ViaCep leads on measured uptime — FreeGeoIP at 96.1% 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, FreeGeoIP or ViaCep?
FreeGeoIP has the lower median latency in our checks — FreeGeoIP responds in 242 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 FreeGeoIP and ViaCep need an API key?
Neither needs a paid key — FreeGeoIP is callable with no signup, and ViaCep is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call FreeGeoIP and ViaCep from the browser?
Yes — both FreeGeoIP and ViaCep 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 FreeGeoIP and ViaCep free for commercial use?
FreeGeoIP 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.