jsDelivr vs Numverify
Same instrument, two spec sheets — measured, not claimed.
jsDelivr vs Numverify: common questions
Which is more reliable, jsDelivr or Numverify?
On our scheduled checks, Numverify leads on measured uptime — jsDelivr at —% versus Numverify 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 jsDelivr and Numverify need an API key?
jsDelivr needs no key, while Numverify requires a free API key. If you want to start calling without signup, reach for jsDelivr first.
Can I call jsDelivr and Numverify from the browser?
Only jsDelivr is browser-friendly — it returns CORS headers over HTTPS. Numverify needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are jsDelivr and Numverify free for commercial use?
jsDelivr has unclear commercial terms, and Numverify 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.