AZ511 vs Road511
Same instrument, two spec sheets — measured, not claimed.
AZ511 vs Road511: common questions
Which is more reliable, AZ511 or Road511?
On our scheduled checks, AZ511 leads on measured uptime — AZ511 at 95.1% versus Road511 at 27.5% 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, AZ511 or Road511?
Road511 has the lower median latency in our checks — AZ511 responds in 2272 ms versus Road511 at 1128 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 AZ511 and Road511 need an API key?
Both ask you to authenticate — AZ511 uses an API key and Road511 uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.
Can I call AZ511 and Road511 from the browser?
Only Road511 is browser-friendly — it returns CORS headers over HTTPS. AZ511 needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are AZ511 and Road511 free for commercial use?
AZ511 has unclear commercial terms, and Road511 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.