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CDN:Performance optimization

Last Updated:Apr 01, 2026

Performance optimization improves response speed by eliminating redundant page content, compressing files, converting image formats, adjusting image quality, and stripping unnecessary request parameters.

For performance metrics, see CDN performance metrics.

You can perform the following operations on domain names through performance optimization.

File size optimization

Reduce transfer size and bandwidth consumption by compressing or minifying content at the point of presence (POP).

FeatureWhat it does
Enable HTML optimizationReduces file size and improves distribution efficiency by automatically removing redundant content from HTML pages.
Configure Gzip compressionReduces file transfer size, improves file transfer efficiency, and reduces bandwidth consumption by compressing text files at the POP using Gzip before returning them to clients.
Configure Brotli compressionReduces file transfer size, improves file transfer efficiency, and reduces bandwidth consumption by compressing text files at the POP using Brotli before returning them to clients.

Image optimization

FeatureWhat it does
Image editingReduces origin server load and saves origin traffic by processing and distributing images directly at the POPs.

Cache efficiency

FeatureWhat it does
Ignore parametersImproves cache hit ratio, reduces origin fetch frequency, saves origin traffic, and enhances distribution efficiency by stripping the query string (parameters after ?) from URL requests.