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Random Profiles vs SLA Uptime Calculator

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

APIRandom ProfilesHEALTHY96SLA Uptime CalculatorHEALTHY82
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms2821373
P95 · ms25292741
AuthapiKeynone
CORSyesyes
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 SLA Uptime Calculator: common questions

Which is more reliable, Random Profiles or SLA Uptime Calculator?

Both are neck-and-neck — Random Profiles and SLA Uptime Calculator 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 SLA Uptime Calculator?

Random Profiles has the lower median latency in our checks — Random Profiles responds in 282 ms versus SLA Uptime Calculator at 1373 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 SLA Uptime Calculator need an API key?

SLA Uptime Calculator needs no key, while Random Profiles requires a free API key. If you want to start calling without signup, reach for SLA Uptime Calculator first.

Can I call Random Profiles and SLA Uptime Calculator from the browser?

Yes — both Random Profiles and SLA Uptime Calculator send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Random Profiles and SLA Uptime Calculator free for commercial use?

Random Profiles has unclear commercial terms, and SLA Uptime Calculator 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.