Free CDN

Looking for a similar plugin but for commercial CDNs like Akamai, Limelight, EdgeCast, Amazon and so on? CDN Rewrites to the rescue!

For busy websites, using a CDN (Content Delivery Network) to transfer static content such as images, javascripts, stylesheets, Flash etc. is highly recommended (as listed in Yahoo!’s Best Practices for Speeding Up Your Web Site) as it reduces server load and bandwidth thus improves stability and availability.

There is a catch - Commerical CDN’s like Akamai and Limelight are not cheap at all. Good news, we have an exception however - the free, P2P-based CoralCDN allows us to take full advantage of a powereful CDN without spending a dime. How to use it? Well, basically, just append `` to the hostname of any URL, and that URL will be handled by Coral - simple.

This plugin takes that simplicity one step further (or closer?) by rewriting your static files’ URL’s (JavaScripts, CSS, images etc.) so that they are served from Coral servers instead of your own. You don’t have to touch anything! Just enable it, and boom! your static contents are handled with care by Coral’s powerful server clusters.

If you are paying bandwidth fee, this plugin hopefully helps with your bills. Even if you don’t, enabling it may save your site in peak times.


  • Just enable the plugin and call it done - no extra steps required!
  • You can exclusively select the content types to be served through CoralCDN - currently supporting JS, CSS, images, inline background images, and <object>’s
  • Additional URL’s can be added as includes or excludes
  • Debug mode gives you a good preview to make sure nothing goes wrong
  • Works normally with other plugins. Especially useful if run along with WP Super Cache
  • AJAX’ed admin section makes it quick and easy to adjust the settings


  1. Download the plugin
  2. Extract into a folder
  3. Upload the entire to `wp-content/plugins/` directory of your WordPress installation
  4. Enable it via Plugins panel
  5. It should now work out of the box. If you want to tweak it a bit, head to Settings->Free CDN

FAQ and History

Head to the plugin’s Codex page.

Demo and Download

I’ve brought the demo site down after switching to WPWebHost :D Sorry for that.


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  • The plugin don’t work correctly with tubepress, an error appear on top while viewing posts.

  • Hi,
    The plugin work excellent for me. There are some compatibility problem with others plugins of the same kind but you can work around it and make it works
    Thanks, for the free plugin

  • Do i missing something.. but now in 2010 with wp3 it does not do anything.. dont improve anything…. what up ?

  • Marc, not sure if I get it right, but things still work on my end…

  • It doesnt work? why?

  • how do we know if this plugin is working? i have activated it ok on my site, but i don’t know how to tell if it is doing its job or not?

  • Hi
    I tried your plugin but after I activated it my site was showing text only. No images on scripts.
    What could have happened?
    Appreciate your time..

  • It seems to have some troubles with the WP Google Analytics plugin : the script tag is rewritten in an improper way and is not usable…

  • Thank you for plugins but I set your plugins at mysite and my themes dont work . Thank you again

  • Am getting this error message when I load my site…”Content Encoding Error
    The page you are trying to view cannot be shown because it uses an invalid or unsupported form of compression.
    Please contact the website owners to inform them of this problem.”
    Any idea what I should be doing. My site does not load. Is there a conflict with another plugin.

  • i have a problem with your plugin, i debug mode it says ” script will be written into ——————————————” and i think this is the cause that breaks my adsense,heyos,analytics code…how can i resolve?thanks

  • It breaks my site if I use it with AWSOM PixGallery.  Excluding the folders that the Gallery images are housed in doesn’t help.  Unfortunately, I can’t give up AWSOM because I’m an artist and I need the gallery feature.  Any ideas?

  • Sounds good for my Zaubershop. I’ll check it out.

  • I tried and did good job on my rock salt website. But after I installed other plugins some errors occurred. Thanks anyway.

  • This plugin is perfect, it can save you lots and lots of bandwidth however its very slow. Without FreeCDN my site was loading for 6-7 seconds, and when i enabled FreeCDN it was loading for 20+ seconds, at least 3 times slower.
    But keep in mind ITS FREE, so dont ask for too much, just rate their plugin with 5 stars, cuz it does its job perfectly, without changing anything on you wordpress configuration.

    Good Job Guys

  • I’m using your plugin on my blog.Thanks for your plugin.

  • It doesnt work? why?

  • Its great plugin, i use in blog Happiness and Earthquake Quotes is fast

  • im started to use and liked it! thank you !

  • Love the idea of your plugin, 2 questions:
    1. How do i know the plugin is working?
    2. I uncheck “Show “Powered by Free CDN WordPress plugin” message on page footer” but it is still showing up on my site.  How can I remove it?

  • yeah dude il ike

  • There is a totally free traditional CDN at - you get 250mb of CDN space totally free.

  • This plugin is great and its Free. Thank you guys.

  • i tested the plugin and besides a slower load of the index page i can t get the plugin to exclude this file wich i use to play various songs

    any suggestions ?

  • So this plugin now seems to be broken with the latest update to WordPress 3.1.  It breaks the “media upload” buttons in that the lightboxes will not load.  It also breaks the ability to “pre-schedule” posting as the button to edit that parameter also breaks with this plugin active.  Lastly, the ability to add tags to your post is dramatically slowed down with the latest update and CDN Rewrites active.  Once I deactivated this plugin everything returned to normal.  It appears to be some sort of jQuery conflict.  Any plans to update this plugin sometime soon?

  • Hello ! I am use it in my site. Also share this page at my social account.

    Thanks, i am following you.

  • Does this plugin hurt SEO or traffic?

  • I’m trying to install it. Hope it works.

  • Is is still work? I can’t run this plugin :s

  • I activated Free CDN on WordPress 3.3 multi-site, but it didn’t seem to do anything other than add admin panels & a the footer credit. Turning on debug mode didn’t do anything either. I added an echo in the pre_content() function, and the echo never appeared, so it looks as though the Free CDN class functions for processing the buffer aren’t firing.

    Well, maybe. I don’t know. I hope that points you in the right direction, though! This would be an excellent plugin for multisite to help offload some server processing, so long as it works flawlessly with multisite & the domain mapping plugin as well.

  • I removed your plugin in and the link is still appearing in the footer. How can I remove it pls?

  • Thanks for the awesome plugin, I like to try on my site. Hope it will help me lot…

  • Hello I have a question, the plugin works on all pages except for one that in all <div> aggiungge url.
    < id=”topnav”>
    I have WP 3.4.1 can you help me?

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