ip-api.com vs Vector Express v2.0
Same instrument, two spec sheets — measured, not claimed.
ip-api.com vs Vector Express v2.0: common questions
Which is more reliable, ip-api.com or Vector Express v2.0?
On our scheduled checks, Vector Express v2.0 leads on measured uptime — ip-api.com at 99.02% versus Vector Express v2.0 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, ip-api.com or Vector Express v2.0?
ip-api.com has the lower median latency in our checks — ip-api.com responds in 33 ms versus Vector Express v2.0 at 613 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 ip-api.com and Vector Express v2.0 need an API key?
Neither needs a paid key — ip-api.com is callable with no signup, and Vector Express v2.0 is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call ip-api.com and Vector Express v2.0 from the browser?
Neither sends browser-friendly CORS headers reliably, so call ip-api.com and Vector Express v2.0 from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are ip-api.com and Vector Express v2.0 free for commercial use?
ip-api.com has unclear commercial terms, and Vector Express v2.0 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.