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scrapestack vs Scrapfly

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

APIscrapestackNEW—ScrapflyNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

scrapestack vs Scrapfly: common questions

Which is more reliable, scrapestack or Scrapfly?

On our scheduled checks, Scrapfly leads on measured uptime — scrapestack 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 scrapestack and Scrapfly need an API key?

Both ask you to authenticate — scrapestack uses an API key and Scrapfly uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call scrapestack and Scrapfly from the browser?

Neither sends browser-friendly CORS headers reliably, so call scrapestack and Scrapfly from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are scrapestack and Scrapfly free for commercial use?

scrapestack 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.