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Catchdoms Security API vs JSONPlaceholder

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

APICatchdoms Security APIHEALTHY93JSONPlaceholderHEALTHY95
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms437401
P95 · ms13981096
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublished1000 req/window · 999 remaining · resets 1783509378
In directory since2026-07-052026-07-05
operationalpartialdownno data

Catchdoms Security API vs JSONPlaceholder: common questions

Which is more reliable, Catchdoms Security API or JSONPlaceholder?

Both are neck-and-neck — Catchdoms Security API and JSONPlaceholder 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 JSONPlaceholder?

JSONPlaceholder has the lower median latency in our checks — Catchdoms Security API responds in 437 ms versus JSONPlaceholder at 401 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 JSONPlaceholder need an API key?

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

Can I call Catchdoms Security API and JSONPlaceholder from the browser?

Only JSONPlaceholder 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 JSONPlaceholder free for commercial use?

Catchdoms Security API has unclear commercial terms, and JSONPlaceholder 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.