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ItsThisForThat vs Zube

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

APIItsThisForThatNEW—ZubeNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublished (docs ask you not to hammer it)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

ItsThisForThat vs Zube: common questions

Which is more reliable, ItsThisForThat or Zube?

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

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

Can I call ItsThisForThat and Zube from the browser?

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

Are ItsThisForThat and Zube free for commercial use?

ItsThisForThat has unclear commercial terms, and Zube 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.