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CDNs made simple, fast & cheap - Murray Woodman

Drupal: 
Difficulty level: 

If you test the speed of loading pages in loadimpact, pingdom, google pagespeed insignts, you may notice that the pictures, style files, Javascript are not loaded in parallel. This slows page loading and page displaying to the user's screen.
To speed up the loading of pages, you need to divide pictures, css files, JS files to CDN server. You can use subdomains of your site or third-party CDN servers.