CDNJS vs Crates.io
Same instrument, two spec sheets — measured, not claimed.
CDNJS vs Crates.io: common questions
Which is more reliable, CDNJS or Crates.io?
On our scheduled checks, CDNJS leads on measured uptime — CDNJS at 100% versus Crates.io at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, CDNJS or Crates.io?
CDNJS has the lower median latency in our checks — CDNJS responds in 281 ms versus Crates.io at 458 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 Crates.io need an API key?
Neither needs a paid key — CDNJS is callable with no signup, and Crates.io is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call CDNJS and Crates.io from the browser?
Yes — both CDNJS and Crates.io send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are CDNJS and Crates.io free for commercial use?
CDNJS has unclear commercial terms, and Crates.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.