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NetworkCalc vs SiteIntel

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

APINetworkCalcNEW—SiteIntelNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree public API, no keyFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

NetworkCalc vs SiteIntel: common questions

Which is more reliable, NetworkCalc or SiteIntel?

On our scheduled checks, SiteIntel leads on measured uptime — NetworkCalc at —% versus SiteIntel 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 NetworkCalc and SiteIntel need an API key?

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

Can I call NetworkCalc and SiteIntel from the browser?

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

Are NetworkCalc and SiteIntel free for commercial use?

NetworkCalc has unclear commercial terms, and SiteIntel 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.