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Catchdoms Security API vs Passantenfrequenzen Zürich

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

APICatchdoms Security APIHEALTHY93Passantenfrequenzen ZürichHEALTHY92
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms437569
P95 · ms13981228
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Catchdoms Security API vs Passantenfrequenzen Zürich: common questions

Which is more reliable, Catchdoms Security API or Passantenfrequenzen Zürich?

Both are neck-and-neck — Catchdoms Security API and Passantenfrequenzen Zürich each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Catchdoms Security API or Passantenfrequenzen Zürich?

Catchdoms Security API has the lower median latency in our checks — Catchdoms Security API responds in 437 ms versus Passantenfrequenzen Zürich at 569 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 Catchdoms Security API and Passantenfrequenzen Zürich need an API key?

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

Can I call Catchdoms Security API and Passantenfrequenzen Zürich from the browser?

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

Are Catchdoms Security API and Passantenfrequenzen Zürich free for commercial use?

Catchdoms Security API has unclear commercial terms, and Passantenfrequenzen Zürich 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.