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Random Profiles vs User Agent Lookup API

Same instrument, two spec sheets — measured, not claimed.

APIRandom ProfilesHEALTHY96User Agent Lookup APIHEALTHY96
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms282426
P95 · ms2529764
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Random Profiles vs User Agent Lookup API: common questions

Which is more reliable, Random Profiles or User Agent Lookup API?

Both are neck-and-neck — Random Profiles 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, Random Profiles or User Agent Lookup API?

Random Profiles has the lower median latency in our checks — Random Profiles responds in 282 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 Random Profiles and User Agent Lookup API need an API key?

User Agent Lookup API needs no key, while Random Profiles requires a free API key. If you want to start calling without signup, reach for User Agent Lookup API first.

Can I call Random Profiles and User Agent Lookup API from the browser?

Only Random Profiles is browser-friendly — it returns CORS headers over HTTPS. User Agent Lookup API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Random Profiles and User Agent Lookup API free for commercial use?

Random Profiles 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.