ITIS vs Noctua

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnonenone
CORSnono
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 Noctua: common questions

Which is more reliable, ITIS or Noctua?

On our scheduled checks, Noctua leads on measured uptime — ITIS at —% versus Noctua 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 Noctua need an API key?

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

Can I call ITIS and Noctua from the browser?

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

Are ITIS and Noctua free for commercial use?

ITIS has unclear commercial terms, and Noctua 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.