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Alan Perlis Quotes vs ITIS

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

APIAlan Perlis QuotesHEALTHY94ITISHEALTHY76
Uptime · 30d
Uptime · 90d100%97.1%
Uptime · 30d100%96.7%
P50 · ms3801767
P95 · ms12884785
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Alan Perlis Quotes vs ITIS: common questions

Which is more reliable, Alan Perlis Quotes or ITIS?

On our scheduled checks, Alan Perlis Quotes leads on measured uptime — Alan Perlis Quotes at 100% versus ITIS at 97.1% 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, Alan Perlis Quotes or ITIS?

Alan Perlis Quotes has the lower median latency in our checks — Alan Perlis Quotes responds in 380 ms versus ITIS at 1767 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 Alan Perlis Quotes and ITIS need an API key?

Neither needs a paid key — Alan Perlis Quotes is callable with no signup, and ITIS is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Alan Perlis Quotes and ITIS from the browser?

Only Alan Perlis Quotes is browser-friendly — it returns CORS headers over HTTPS. ITIS needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Alan Perlis Quotes and ITIS free for commercial use?

Alan Perlis Quotes has unclear commercial terms, and ITIS 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.