This plugin hasn’t been tested with the latest three major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

CSS-JS-Booster

Description

CSS-JS-Booster is a PHP-script that tries to automate as many performance
optimizing steps related to CSS and JS embedding as possible.
Depending on the amount of CSS, CSS-images and JS, this can significantly
increase loading speed of your site.

Note: Check by hand the htaccess-part! (see “Installation”)

For CSS optimization steps are:

  • combine multiple CSS-files resulting in less HTTP-requests
  • Optimize and minify CSS with CSSTidy
  • Embed any CSS-images smaller 24KB as data-URI or MHTML (for IE <= 7)
  • GZIP-compress the resulting CSS
  • Have browsers cache the result as long as it remains unchanged
  • If IE6: Issue a JS-command to fix background image caching behaviour

For JS optimization steps are:

  • Fetch JS from external servers and cache it locally
  • Combine multiple JS-files resulting in HTTP-requests going down
  • GZIP-compress the resulting JS
  • Have browsers cache the result as long as it remains unchanged

Support

Please send bug reports this way: http://github.com/Schepp/CSS-JS-Booster/issues

When creating a new issue:

  • Make sure that you mention in the title that you are talking about the WordPress plugin (as there is a standalone version, too), e.g.: “[WP] Booster killed my site”
  • Make sure that you send me a link to your page
  • Tell me what exactly is broken
  • It helps if you put the HTML source code of your page resulting from activated Booster on http://pastebin.com/ and include a link to it
  • It helps if you put the HTML source code of your page resulting from deactivated Booster on http://pastebin.com/ and include a link to it
  • It helps if you tell me which plugins are active

Installation

CSS-JS-Booster absolutely requires PHP 5. No PHP 4, sorry…
Version-wise it is tested up until PHP 5.3.

  • Copy the whole booster-folder into wp-content/plugins/
  • If not already there: create a subfolder named booster_cache inside wp-content/ and CHMOD it to 0777 (give it write-permissions)
  • Go into the admin-panel to the plugins and activate CSS-JS-Booster
  • Check if the contents of the file wp-content/plugins/booster/htaccess/.htaccess were put into/appended to the .htaccess-file in the root of your WordPress-site. If not append them by hand.

Compatibility with other plugins

CSS-JS-Booster may in rare cases break some other plugins.
I noticed for example that plugins trying to calculate file-paths based on the src-attribute of the script-tag break.
So you need to check yourself.

If your site has many visitors, we suggest that you combine CSS-JS-Booster with WP-Super-Cache.

Reviews

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Contributors and Developers

“CSS-JS-Booster” is open source software. The following people have contributed to this plugin.

Contributors

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Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.