CPFHub vs ONS
Same instrument, two spec sheets — measured, not claimed.
CPFHub vs ONS: common questions
Which is more reliable, CPFHub or ONS?
On our scheduled checks, ONS leads on measured uptime — CPFHub at —% versus ONS 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 CPFHub and ONS need an API key?
ONS needs no key, while CPFHub requires a free API key. If you want to start calling without signup, reach for ONS first.
Can I call CPFHub and ONS from the browser?
Yes — both CPFHub and ONS 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 CPFHub and ONS free for commercial use?
CPFHub has unclear commercial terms, and ONS 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.