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InternetDB API vs RSQ API

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

APIInternetDB APINEW—RSQ APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesno
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

InternetDB API vs RSQ API: common questions

Which is more reliable, InternetDB API or RSQ API?

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

Neither needs a paid key — InternetDB API is callable with no signup, and RSQ API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call InternetDB API and RSQ API from the browser?

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

Are InternetDB API and RSQ API free for commercial use?

InternetDB API has unclear commercial terms, and RSQ API 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.