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Gcore CDN vs QR & Barcode

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

APIGcore CDNHEALTHY96QR & BarcodeHEALTHY91
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms362722
P95 · ms12211344
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Gcore CDN vs QR & Barcode: common questions

Which is more reliable, Gcore CDN or QR & Barcode?

Both are neck-and-neck — Gcore CDN and QR & Barcode 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, Gcore CDN or QR & Barcode?

Gcore CDN has the lower median latency in our checks — Gcore CDN responds in 362 ms versus QR & Barcode at 722 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 Gcore CDN and QR & Barcode need an API key?

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

Can I call Gcore CDN and QR & Barcode from the browser?

Yes — both Gcore CDN and QR & Barcode 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 Gcore CDN and QR & Barcode free for commercial use?

Gcore CDN has unclear commercial terms, and QR & Barcode 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.