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Host.io vs jsDelivr

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

APIHost.ioREACHABLE—jsDelivrNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree, no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Host.io vs jsDelivr: common questions

Which is more reliable, Host.io or jsDelivr?

On our scheduled checks, jsDelivr leads on measured uptime — Host.io at —% versus jsDelivr 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 Host.io and jsDelivr need an API key?

jsDelivr needs no key, while Host.io requires a free API key. If you want to start calling without signup, reach for jsDelivr first.

Can I call Host.io and jsDelivr from the browser?

Yes — both Host.io and jsDelivr 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 Host.io and jsDelivr free for commercial use?

Host.io has unclear commercial terms, and jsDelivr 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.