Ducks Unlimited vs Open-Elevation API

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

Uptime · 30d
Uptime · 90d99.02%92.2%
Uptime · 30d98.3%88.3%
P50 · ms832739
P95 · ms22024287
Authnonenone
CORSyesyes
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

Ducks Unlimited vs Open-Elevation API: common questions

Which is more reliable, Ducks Unlimited or Open-Elevation API?

On our scheduled checks, Ducks Unlimited leads on measured uptime — Ducks Unlimited at 99.02% versus Open-Elevation API at 92.2% 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, Ducks Unlimited or Open-Elevation API?

Open-Elevation API has the lower median latency in our checks — Ducks Unlimited responds in 832 ms versus Open-Elevation API at 739 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 Ducks Unlimited and Open-Elevation API need an API key?

Neither needs a paid key — Ducks Unlimited is callable with no signup, and Open-Elevation API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Ducks Unlimited and Open-Elevation API from the browser?

Yes — both Ducks Unlimited and Open-Elevation API 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 Ducks Unlimited and Open-Elevation API free for commercial use?

Ducks Unlimited has unclear commercial terms, and Open-Elevation 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.