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Callook.info vs Lowy Asia Power Index

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

APICallook.infoHEALTHY94Lowy Asia Power IndexHEALTHY92
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms437558
P95 · ms11562319
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (data from public FCC ULS records)Unverified (Lowy Institute research)
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Callook.info vs Lowy Asia Power Index: common questions

Which is more reliable, Callook.info or Lowy Asia Power Index?

Both are neck-and-neck — Callook.info and Lowy Asia Power Index 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, Callook.info or Lowy Asia Power Index?

Callook.info has the lower median latency in our checks — Callook.info responds in 437 ms versus Lowy Asia Power Index at 558 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 Callook.info and Lowy Asia Power Index need an API key?

Neither needs a paid key — Callook.info is callable with no signup, and Lowy Asia Power Index is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Callook.info and Lowy Asia Power Index from the browser?

Only Callook.info is browser-friendly — it returns CORS headers over HTTPS. Lowy Asia Power Index needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Callook.info and Lowy Asia Power Index free for commercial use?

Callook.info has unclear commercial terms, and Lowy Asia Power Index 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.