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Passantenfrequenzen Zürich vs TotalShiftLeft Sandbox

Same instrument, two spec sheets — measured, not claimed.

APIPassantenfrequenzen ZürichHEALTHY95TotalShiftLeft SandboxHEALTHY93
Uptime · 30d
Uptime · 90d100%98.9%
Uptime · 30d100%98.3%
P50 · ms165468
P95 · ms12281171
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — open sandbox, auth optional
Rate limitUnpublished100 req/window · 99 remaining · resets 60
In directory since2026-07-052026-07-05
operationalpartialdownno data

Passantenfrequenzen Zürich vs TotalShiftLeft Sandbox: common questions

Which is more reliable, Passantenfrequenzen Zürich or TotalShiftLeft Sandbox?

On our scheduled checks, Passantenfrequenzen Zürich leads on measured uptime — Passantenfrequenzen Zürich at 100% versus TotalShiftLeft Sandbox at 98.9% 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, Passantenfrequenzen Zürich or TotalShiftLeft Sandbox?

Passantenfrequenzen Zürich has the lower median latency in our checks — Passantenfrequenzen Zürich responds in 165 ms versus TotalShiftLeft Sandbox at 468 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 Passantenfrequenzen Zürich and TotalShiftLeft Sandbox need an API key?

Neither needs a paid key — Passantenfrequenzen Zürich is callable with no signup, and TotalShiftLeft Sandbox is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Passantenfrequenzen Zürich and TotalShiftLeft Sandbox from the browser?

Only Passantenfrequenzen Zürich is browser-friendly — it returns CORS headers over HTTPS. TotalShiftLeft Sandbox needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Passantenfrequenzen Zürich and TotalShiftLeft Sandbox free for commercial use?

Passantenfrequenzen Zürich has unclear commercial terms, and TotalShiftLeft Sandbox 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.