Browser Caching
Browser caching is a technique used by web browsers to store static resources of a website locally on a user’s machine. This enables faster loading times for subsequent visits to the website as the resources do not need to be re-downloaded from the server.
When a user visits a website, the browser downloads all the assets such as images, CSS files, and JavaScript files needed to display the webpage. By caching these resources, the browser can quickly access them from the local storage when the user revisits the website.
One way to implement browser caching is by setting the expiration time for the resources in the website’s HTTP headers. This tells the browser how long it should keep the cached resources before checking for updates on the server.
For example, to set an expiration time of one week for all image files on a website, you can add the following code to the .htaccess file:
<FilesMatch ".(jpg|jpeg|png|gif)$">
Header set Cache-Control "max-age=604800, public"
</FilesMatch>
By using browser caching, website owners can improve the performance of their websites and provide a better user experience for visitors.
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