Quandl vs The Guardian
Same instrument, two spec sheets — measured, not claimed.
Quandl vs The Guardian: common questions
Which is more reliable, Quandl or The Guardian?
On our scheduled checks, Quandl leads on measured uptime — Quandl at 100% versus The Guardian at 50.6% 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, Quandl or The Guardian?
Quandl has the lower median latency in our checks — Quandl responds in 420 ms versus The Guardian at 517 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 Quandl and The Guardian need an API key?
Quandl needs no key, while The Guardian requires a free API key. If you want to start calling without signup, reach for Quandl first.
Can I call Quandl and The Guardian from the browser?
Neither sends browser-friendly CORS headers reliably, so call Quandl and The Guardian from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Quandl and The Guardian free for commercial use?
Quandl has unclear commercial terms, and The Guardian 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.