jsDelivr vs JSONPlaceholder

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms171127
P95 · ms8913127
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree, no keyFree — limits not published
Rate limitUnpublished1000 req/window · 999 remaining · resets 1783509378
In directory since2026-07-052026-07-05
operationalpartialdownno data

jsDelivr vs JSONPlaceholder: common questions

Which is more reliable, jsDelivr or JSONPlaceholder?

Both are neck-and-neck — jsDelivr 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, jsDelivr or JSONPlaceholder?

JSONPlaceholder has the lower median latency in our checks — jsDelivr responds in 171 ms versus JSONPlaceholder at 127 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 jsDelivr and JSONPlaceholder need an API key?

Neither needs a paid key — jsDelivr 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 jsDelivr and JSONPlaceholder from the browser?

Yes — both jsDelivr and JSONPlaceholder send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are jsDelivr and JSONPlaceholder free for commercial use?

jsDelivr 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.