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Optimize caching - Make the Web Faster. Most web pages include resources that change infrequently, such as CSS files, image files, JavaScript files, and so on. These resources take time to download over the network, which increases the time it takes to load a web page. HTTP caching allows these resources to be saved, or cached, by a browser or proxy. Once a resource is cached, a browser or proxy can refer to the locally cached copy instead of having to download it again on subsequent visits to the web page. Thus caching is a double win: you reduce round-trip time by eliminating numerous HTTP requests for the required resources, and you substantially reduce the total payload size of the responses. Besides leading to a dramatic reduction in page load time for subsequent user visits, enabling caching can also significantly reduce the bandwidth and hosting costs for your site. Leverage browser caching Overview Details HTTP/S supports local caching of static resources by the browser.

Expires and Cache-Control: max-age. Example. Interoperability, Browser & Cross Platform Testing | Modern.IE. Kraken Image Optimizer · Kraken.io. Best Practices for Speeding Up Your Web Site. The Exceptional Performance team has identified a number of best practices for making web pages fast.

The list includes 35 best practices divided into 7 categories. Minimize HTTP Requests tag: content 80% of the end-user response time is spent on the front-end. Most of this time is tied up in downloading all the components in the page: images, stylesheets, scripts, Flash, etc. Reducing the number of components in turn reduces the number of HTTP requests required to render the page. This is the key to faster pages. One way to reduce the number of components in the page is to simplify the page's design. Combined files are a way to reduce the number of HTTP requests by combining all scripts into a single script, and similarly combining all CSS into a single stylesheet. CSS Sprites are the preferred method for reducing the number of image requests.

Image maps combine multiple images into a single image. Inline images use the data: URL scheme to embed the image data in the actual page. Tag: css. Php - Optimizing Kohana-based Websites for Speed and Scalability. How To Install PHP APC In Xampp For Windows. Outage Analyzer - Mapping Internet Outages in Realtime.