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ITIS vs Strictly Better API

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

APIITISNEW—Strictly Better APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
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

ITIS vs Strictly Better API: common questions

Which is more reliable, ITIS or Strictly Better API?

On our scheduled checks, Strictly Better API leads on measured uptime — ITIS at —% versus Strictly Better API at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do ITIS and Strictly Better API need an API key?

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

Can I call ITIS and Strictly Better API from the browser?

Only Strictly Better API 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 ITIS and Strictly Better API free for commercial use?

ITIS has unclear commercial terms, and Strictly Better 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.