Serialif Color vs Zube

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

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 limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Serialif Color vs Zube: common questions

Which is more reliable, Serialif Color or Zube?

On our scheduled checks, Zube leads on measured uptime — Serialif Color 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 Serialif Color and Zube need an API key?

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

Can I call Serialif Color and Zube from the browser?

Neither sends browser-friendly CORS headers reliably, so call Serialif Color 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 Serialif Color and Zube free for commercial use?

Serialif Color 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.