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MalwareBazaar vs URLScan.io

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

APIMalwareBazaarNEW—URLScan.ioNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — key may be required
Rate limitUnpublished30 req/window · 29 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

MalwareBazaar vs URLScan.io: common questions

Which is more reliable, MalwareBazaar or URLScan.io?

On our scheduled checks, URLScan.io leads on measured uptime — MalwareBazaar at —% versus URLScan.io 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 MalwareBazaar and URLScan.io need an API key?

Both ask you to authenticate — MalwareBazaar uses an API key and URLScan.io uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call MalwareBazaar and URLScan.io from the browser?

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

Are MalwareBazaar and URLScan.io free for commercial use?

MalwareBazaar has unclear commercial terms, and URLScan.io 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.