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Genius vs Screenshotlayer

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

APIGeniusNEW—ScreenshotlayerNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Genius vs Screenshotlayer: common questions

Which is more reliable, Genius or Screenshotlayer?

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

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

Can I call Genius and Screenshotlayer from the browser?

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

Are Genius and Screenshotlayer free for commercial use?

Genius has unclear commercial terms, and Screenshotlayer 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.