ddownload vs NetworkCalc
Same instrument, two spec sheets — measured, not claimed.
ddownload vs NetworkCalc: common questions
Which is more reliable, ddownload or NetworkCalc?
On our scheduled checks, ddownload leads on measured uptime — ddownload at 100% versus NetworkCalc 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, ddownload or NetworkCalc?
ddownload has the lower median latency in our checks — ddownload responds in 365 ms versus NetworkCalc at 448 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 ddownload and NetworkCalc need an API key?
NetworkCalc needs no key, while ddownload requires a free API key. If you want to start calling without signup, reach for NetworkCalc first.
Can I call ddownload and NetworkCalc from the browser?
Only NetworkCalc is browser-friendly — it returns CORS headers over HTTPS. ddownload needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are ddownload and NetworkCalc free for commercial use?
ddownload has unclear commercial terms, and NetworkCalc 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.