Content Delivery Network

Content Delivery Network (CDN)

Caches and serves responses from a location close to each user, cutting latency and offloading the origin. We detect it from response headers (cf-ray, x-served-by, via, …).

See also. TTFB, Cache-Control

Related terms. TTFB

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Written by the Lightscore team. Drafted with AI assistance and reviewed by a human against the sources above.