NetworkCalc vs Scrapfly
Same instrument, two spec sheets — measured, not claimed.
NetworkCalc vs Scrapfly: common questions
Which is more reliable, NetworkCalc or Scrapfly?
Both are neck-and-neck — NetworkCalc and Scrapfly each measure 99.02% 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, NetworkCalc or Scrapfly?
NetworkCalc has the lower median latency in our checks — NetworkCalc responds in 448 ms versus Scrapfly at 1015 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 NetworkCalc and Scrapfly need an API key?
NetworkCalc needs no key, while Scrapfly requires a free API key. If you want to start calling without signup, reach for NetworkCalc first.
Can I call NetworkCalc and Scrapfly from the browser?
Only NetworkCalc is browser-friendly — it returns CORS headers over HTTPS. Scrapfly needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are NetworkCalc and Scrapfly free for commercial use?
NetworkCalc has unclear commercial terms, and Scrapfly 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.