caldays vs HackerNews

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms149380
P95 · ms6751269
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — no key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

caldays vs HackerNews: common questions

Which is more reliable, caldays or HackerNews?

Both are neck-and-neck — caldays and HackerNews 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, caldays or HackerNews?

caldays has the lower median latency in our checks — caldays responds in 149 ms versus HackerNews at 380 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 caldays and HackerNews need an API key?

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

Can I call caldays and HackerNews from the browser?

Yes — both caldays and HackerNews 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 caldays and HackerNews free for commercial use?

caldays has unclear commercial terms, and HackerNews 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.