How do I set cache control HTTP header?
To use cache-control in HTML, you use the meta tag, e.g. The value in the content field is defined as one of the four values below. HTTP 1.1. Allowed values = PUBLIC | PRIVATE | NO-CACHE | NO-STORE.
What is HTTP cache header?
Cache-control is an HTTP header used to specify browser caching policies in both client requests and server responses. Policies include how a resource is cached, where it’s cached and its maximum age before expiring (i.e., time to live).
How do I set caching headers?
To use Cache-Control headers, choose Content Management | Cache Control Directives in the administration server. Then, using the Resource Picker, choose the directory where you want to set the headers. After setting the headers, click ‘OK’.
How do I view cache-control headers?
An HTTP/1.1 origin server should send both, the ETag and the Last-Modified value. More details can be found in section 13.3. 4 in the RFC2616. You can check your HTTP Cache Headers using KeyCDN’s HTTP Header Checker tool.
How to check the cache headers of an HTTP request?
This can be done using an If-Modified-Since request header field. An HTTP/1.1 origin server should send both, the ETag and the Last-Modified value. More details can be found in section 13.3.4 in the RFC2616. You can check your HTTP Cache Headers using KeyCDN’s HTTP Header Checker tool. 5. Extension Cache-Control directives
Which is an example of a cache header?
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). In addition to cache-control, notable HTTP cache headers include:
Is the pragma header the same as the Cache Control header?
Pragma is a HTTP/1.0 header, it is not specified for HTTP responses and is therefore not a reliable replacement for the general HTTP/1.1 Cache-Control header, although it does behave the same as Cache-Control: no-cache, if the Cache-Control header field is omitted in a request.
How is cache control used in the browser?
Cache-control is an HTTP header used to specify browser caching policies in both client requests and server responses. Policies include how a resource is cached, where it’s cached and its maximum age before expiring (i.e., time to live). The cache-control header is broken up into directives, the most common of which are detailed below: