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The Guardian vs Warnely

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

APIThe GuardianNEW—WarnelyNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree developer key — registration requiredFree — limits not published
Rate limit5000 calls/day (developer tier)100 req/window · 99 remaining · resets 60
In directory since2026-07-052026-07-05
operationalpartialdownno data

The Guardian vs Warnely: common questions

Which is more reliable, The Guardian or Warnely?

On our scheduled checks, Warnely leads on measured uptime — The Guardian at —% versus Warnely 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 The Guardian and Warnely need an API key?

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

Can I call The Guardian and Warnely from the browser?

Yes — both The Guardian and Warnely 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 The Guardian and Warnely free for commercial use?

The Guardian 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.