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CheapShark API vs Warnely

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

APICheapShark APIHEALTHY88WarnelyDYING89
Uptime · 30d
Uptime · 90d99.02%90.2%
Uptime · 30d98.3%83.3%
P50 · ms804334
P95 · ms24831375
Authnonenone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublished100 req/window · 99 remaining · resets 60
In directory since2026-07-052026-07-05
operationalpartialdownno data

CheapShark API vs Warnely: common questions

Which is more reliable, CheapShark API or Warnely?

On our scheduled checks, CheapShark API leads on measured uptime — CheapShark API at 99.02% versus Warnely at 90.2% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, CheapShark API or Warnely?

Warnely has the lower median latency in our checks — CheapShark API responds in 804 ms versus Warnely at 334 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do CheapShark API and Warnely need an API key?

Neither needs a paid key — CheapShark API is callable with no signup, and Warnely is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call CheapShark API and Warnely from the browser?

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

Are CheapShark API and Warnely free for commercial use?

CheapShark API has unclear commercial terms, and Warnely 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.