CDNJS vs Vector Express v2.0
Same instrument, two spec sheets — measured, not claimed.
CDNJS vs Vector Express v2.0: common questions
Which is more reliable, CDNJS or Vector Express v2.0?
Both are neck-and-neck — CDNJS and Vector Express v2.0 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 Vector Express v2.0?
CDNJS has the lower median latency in our checks — CDNJS responds in 281 ms versus Vector Express v2.0 at 613 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 Vector Express v2.0 need an API key?
Neither needs a paid key — CDNJS is callable with no signup, and Vector Express v2.0 is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call CDNJS and Vector Express v2.0 from the browser?
Only CDNJS is browser-friendly — it returns CORS headers over HTTPS. Vector Express v2.0 needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are CDNJS and Vector Express v2.0 free for commercial use?
CDNJS has unclear commercial terms, and Vector Express v2.0 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.