After expiring, a browser must refresh its version of the resource by sending another request to a server. Register Now. The no-cache directive means that a browser may cache a response, but must first submit a validation request to an origin server. This setting is usually used for sensitive data, such as personal banking details.
The private response directive indicates that a resource is user specific—it can still be cached, but only on a client device. For example, a web page response marked as private can be cached by a desktop browser, but not a content delivery network CDN. The variety of caching headers can make manual cache management overwhelming.
CDNs allow for granular cache policy management through a user-friendly dashboard, relieving you of the need to manually tweak individual headers. In addition to simplifying cache management, CDNs augment the browser caching process using proxies.
Proxy caching brings content closer to site visitors, accelerating the delivery of locally stored resources. This is especially beneficial for first-time visitors whose browsers have yet to cache site content.
Finally, more advanced CDNs use advanced automation techniques, including machine learning, to cache dynamically generated content and resources. This optimizes your caching policies and further speeds up content delivery. Cache Control What is the Cache-Control Header Cache-control is an HTTP header used to specify browser caching policies in both client requests and server responses. Easy Normal Medium Hard Expert. Writing code in comment? Please use ide. Load Comments. What's New.
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