FreeGeoIP vs SLF
Same instrument, two spec sheets — measured, not claimed.
FreeGeoIP vs SLF: common questions
Which is more reliable, FreeGeoIP or SLF?
On our scheduled checks, SLF leads on measured uptime — FreeGeoIP at 99.44% versus SLF 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, FreeGeoIP or SLF?
They're evenly matched on speed — both FreeGeoIP and SLF post a 145 ms median (P50) in our checks. Look at the P95 row above if worst-case latency matters more than the typical response for your use case.
Do FreeGeoIP and SLF need an API key?
Neither needs a paid key — FreeGeoIP is callable with no signup, and SLF is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call FreeGeoIP and SLF from the browser?
Yes — both FreeGeoIP and SLF 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 SLF free for commercial use?
FreeGeoIP has unclear commercial terms, and SLF 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.