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Adoptium vs Gcore CDN

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

APIAdoptiumHEALTHY92Gcore CDNHEALTHY96
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms476362
P95 · ms12551221
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Adoptium vs Gcore CDN: common questions

Which is more reliable, Adoptium or Gcore CDN?

Both are neck-and-neck — Adoptium and Gcore CDN 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, Adoptium or Gcore CDN?

Gcore CDN has the lower median latency in our checks — Adoptium responds in 476 ms versus Gcore CDN at 362 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 Adoptium and Gcore CDN need an API key?

Adoptium needs no key, while Gcore CDN requires a free API key. If you want to start calling without signup, reach for Adoptium first.

Can I call Adoptium and Gcore CDN from the browser?

Yes — both Adoptium and Gcore CDN 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 Adoptium and Gcore CDN free for commercial use?

Adoptium has unclear commercial terms, and Gcore CDN 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.