Scrapfly vs User Agent Lookup API
Same instrument, two spec sheets — measured, not claimed.
Scrapfly vs User Agent Lookup API: common questions
Which is more reliable, Scrapfly or User Agent Lookup API?
On our scheduled checks, User Agent Lookup API leads on measured uptime — Scrapfly at 99.02% versus User Agent Lookup API at 100% 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, Scrapfly or User Agent Lookup API?
User Agent Lookup API has the lower median latency in our checks — Scrapfly responds in 1015 ms versus User Agent Lookup API at 426 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 Scrapfly and User Agent Lookup API need an API key?
User Agent Lookup API needs no key, while Scrapfly requires a free API key. If you want to start calling without signup, reach for User Agent Lookup API first.
Can I call Scrapfly and User Agent Lookup API from the browser?
Neither sends browser-friendly CORS headers reliably, so call Scrapfly and User Agent Lookup API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Scrapfly and User Agent Lookup API free for commercial use?
Scrapfly has unclear commercial terms, and User Agent Lookup API 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.