Contents
How do you control cache?
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 cache-control in HTML?
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.
How do I manage my browser cache?
Use Cache-control HTTP directive to control who can cache the response, under which conditions, and for how long. Configure your server or application to send validation token Etag. Do not cache HTML in the browser. Always set cache-control: no-store, no-cache before sending HTML response to the client-side.
What is default cache control?
The default cache-control header is : Private. A cache mechanism may cache this page in a private cache and resend it only to a single client. This is the default value. Most proxy servers will not cache pages with this setting.
What do you need to know about cache control?
Cache-Control 1 Syntax. Case-insensitive, but lowercase is recommended. 2 Directives. Directives that define whether a response/request can be cached, where it may be cached, and whether it must be validated with the origin server before caching. 3 Examples. 4 Specifications 5 Browser compatibility.
How to configure cache control in PHP server?
The following are examples of how to implement Cache-Control in Apache, Nginx, or within your PHP code. The following snippet can be added to your .htaccess file to tell the server to set the Cache-Control header’s max-age to 84600 seconds and to public for the listed files.
How long does a website have to be cached?
Some things you can’t cache for very long. In the dropdown list below, certain pixels need to be updated all the time, so they are cached by the minute or in real-time. For the most part, the majority of the assets on this site (if you continue to scroll down the list of resources) are cached for 30 days.
How often can you clear cache in CSS?
No one cache policy is going to be the same. If you publish content constantly, you can clear your cache manually. If you are rarely updating your content, you can set a 30-day cache policy and be totally fine. For static elements like core CSS stylesheets, you can even extend the max-age to one year.