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CIRCL CVE Search vs Warnely

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

APICIRCL CVE SearchHEALTHY89WarnelyDYING89
Uptime · 30d
Uptime · 90d98.0%90.2%
Uptime · 30d96.7%83.3%
P50 · ms698334
P95 · ms27651375
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublished100 req/window · 99 remaining · resets 60
In directory since2026-07-052026-07-05
operationalpartialdownno data

CIRCL CVE Search vs Warnely: common questions

Which is more reliable, CIRCL CVE Search or Warnely?

On our scheduled checks, CIRCL CVE Search leads on measured uptime — CIRCL CVE Search at 98.0% 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, CIRCL CVE Search or Warnely?

Warnely has the lower median latency in our checks — CIRCL CVE Search responds in 698 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 CIRCL CVE Search and Warnely need an API key?

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

Can I call CIRCL CVE Search and Warnely from the browser?

Only CIRCL CVE Search is browser-friendly — it returns CORS headers over HTTPS. Warnely needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are CIRCL CVE Search and Warnely free for commercial use?

CIRCL CVE Search 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.