AZ511 vs Transport for Switzerland
Same instrument, two spec sheets — measured, not claimed.
AZ511 vs Transport for Switzerland: common questions
Which is more reliable, AZ511 or Transport for Switzerland?
On our scheduled checks, Transport for Switzerland leads on measured uptime — AZ511 at —% versus Transport for Switzerland at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Do AZ511 and Transport for Switzerland need an API key?
Transport for Switzerland needs no key, while AZ511 requires a free API key. If you want to start calling without signup, reach for Transport for Switzerland first.
Can I call AZ511 and Transport for Switzerland from the browser?
Only Transport for Switzerland 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 Transport for Switzerland free for commercial use?
AZ511 has unclear commercial terms, and Transport for Switzerland 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.