Optimization

Dynamic Site Acceleration, or DSA, is a group of techniques for requests that still need to reach the origin . A CDN edge accepts the client connection, reuses optimized connections toward the origin, and may choose a better measured route. DSA can reduce network and connection delay, but it cannot remove slow application processing. DSA is not an HTTP standard or one uniform product. Providers use different names and combine different controls. Evaluate the documented behavior and measured result, not the label. ...

Synopsis Image optimization across CDNs requires stable transform URLs, equivalent format negotiation, consistent cache identity, and measurable quality targets. Rollout controls and telemetry must detect vendor differences before they fragment caches or break links. Scope and objectives Many CDNs provide on the fly transforms for images and lightweight assets. Typical operations include resize, crop, format conversion, quality selection, and color space handling. Multi-CDN adds a requirement that identical requests produce identical bytes or at least identical perceptual quality, and that cache identity does not drift between providers. The objective is predictable output, stable cache behavior, and measurable gains in transfer size and rendering time. ...