scrapestack vs User Agent Lookup API
Same instrument, two spec sheets — measured, not claimed.
scrapestack vs User Agent Lookup API: common questions
Which is more reliable, scrapestack or User Agent Lookup API?
Both are neck-and-neck — scrapestack and User Agent Lookup API each measure 100% 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, scrapestack or User Agent Lookup API?
scrapestack has the lower median latency in our checks — scrapestack responds in 346 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 scrapestack and User Agent Lookup API need an API key?
User Agent Lookup API needs no key, while scrapestack requires a free API key. If you want to start calling without signup, reach for User Agent Lookup API first.
Can I call scrapestack and User Agent Lookup API from the browser?
Neither sends browser-friendly CORS headers reliably, so call scrapestack 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 scrapestack and User Agent Lookup API free for commercial use?
scrapestack 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.