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User Agent Lookup API vs WebScraping.AI

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

APIUser Agent Lookup APIHEALTHY96WebScraping.AIHEALTHY93
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms426460
P95 · ms7641109
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

User Agent Lookup API vs WebScraping.AI: common questions

Which is more reliable, User Agent Lookup API or WebScraping.AI?

Both are neck-and-neck — User Agent Lookup API and WebScraping.AI 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, User Agent Lookup API or WebScraping.AI?

User Agent Lookup API has the lower median latency in our checks — User Agent Lookup API responds in 426 ms versus WebScraping.AI at 460 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 User Agent Lookup API and WebScraping.AI need an API key?

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

Can I call User Agent Lookup API and WebScraping.AI from the browser?

Neither sends browser-friendly CORS headers reliably, so call User Agent Lookup API and WebScraping.AI from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are User Agent Lookup API and WebScraping.AI free for commercial use?

User Agent Lookup API has unclear commercial terms, and WebScraping.AI 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.