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jsDelivr vs Scrapfly

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

APIjsDelivrNEW—ScrapflyNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree, no keyFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

jsDelivr vs Scrapfly: common questions

Which is more reliable, jsDelivr or Scrapfly?

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

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

Can I call jsDelivr and Scrapfly from the browser?

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

Are jsDelivr and Scrapfly free for commercial use?

jsDelivr has unclear commercial terms, and Scrapfly 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.