CDNJS vs RSQ API
Same instrument, two spec sheets — measured, not claimed.
CDNJS vs RSQ API: common questions
Which is more reliable, CDNJS or RSQ API?
Both are neck-and-neck — CDNJS and RSQ API 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, CDNJS or RSQ API?
CDNJS has the lower median latency in our checks — CDNJS responds in 281 ms versus RSQ API at 783 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 CDNJS and RSQ API need an API key?
Neither needs a paid key — CDNJS 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 CDNJS and RSQ API from the browser?
Only CDNJS 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 CDNJS and RSQ API free for commercial use?
CDNJS 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.