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Numverify vs Screenshotbase

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

APINumverifyHEALTHY96ScreenshotbaseDEAD0
Uptime · 30d
Uptime · 90d100%0.0%
Uptime · 30d100%0.0%
P50 · ms292—
P95 · ms1488—
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

Numverify vs Screenshotbase: common questions

Which is more reliable, Numverify or Screenshotbase?

On our scheduled checks, Numverify leads on measured uptime — Numverify at 100% versus Screenshotbase at 0.0% 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 Numverify and Screenshotbase need an API key?

Both ask you to authenticate — Numverify uses an API key and Screenshotbase 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 Numverify and Screenshotbase from the browser?

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

Are Numverify and Screenshotbase free for commercial use?

Numverify has unclear commercial terms, and Screenshotbase 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.