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Shodan EntityDB API vs SLA Uptime Calculator

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

APIShodan EntityDB APIHEALTHY87SLA Uptime CalculatorHEALTHY82
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms9181373
P95 · ms13062741
Authnonenone
CORSnoyes
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

Shodan EntityDB API vs SLA Uptime Calculator: common questions

Which is more reliable, Shodan EntityDB API or SLA Uptime Calculator?

Both are neck-and-neck — Shodan EntityDB API and SLA Uptime Calculator each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Shodan EntityDB API or SLA Uptime Calculator?

Shodan EntityDB API has the lower median latency in our checks — Shodan EntityDB API responds in 918 ms versus SLA Uptime Calculator at 1373 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 Shodan EntityDB API and SLA Uptime Calculator need an API key?

Neither needs a paid key — Shodan EntityDB API is callable with no signup, and SLA Uptime Calculator is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Shodan EntityDB API and SLA Uptime Calculator from the browser?

Only SLA Uptime Calculator is browser-friendly — it returns CORS headers over HTTPS. Shodan EntityDB API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Shodan EntityDB API and SLA Uptime Calculator free for commercial use?

Shodan EntityDB API has unclear commercial terms, and SLA Uptime Calculator 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.