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Yes-as-a-Service vs Yes No

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

APIYes-as-a-ServiceNEW—Yes NoNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Yes-as-a-Service vs Yes No: common questions

Which is more reliable, Yes-as-a-Service or Yes No?

On our scheduled checks, Yes No leads on measured uptime — Yes-as-a-Service at —% versus Yes No 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 Yes-as-a-Service and Yes No need an API key?

Neither needs a paid key — Yes-as-a-Service is callable with no signup, and Yes No is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Yes-as-a-Service and Yes No from the browser?

Yes — both Yes-as-a-Service and Yes No send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Yes-as-a-Service and Yes No free for commercial use?

Yes-as-a-Service has unclear commercial terms, and Yes No 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.