If you switch on Gzip in Joomla, all pages are zipped on the server-side before they are sent to the browser. Your browser then unzips the content and displays the site. Gzip is supported pretty well nowadays, even Internet Explorer version 6 and up, so there is nothing to hold you back from using it. And it can give quite some gain in webspeed. You may gain 50% or more in bytes to be downloaded. Just try it out and check the result with one of the on-line checks for webspeed.

G-zip can be activated in the Joomla Global Configuration, on the Server-tab. Look for "Gzip Page Compression" and set it to Yes:


Also you can check on-line whether the Gzip process works nicely. Check your site on This will tell you if G-zip works, and also what the compression rate is:

check gzip compression

And that's all there is to it, very easy to achieve.

Run a Full Website Scan in Minutes is fully built and written by Simon Kloostra, Joomla SEO Specialist and Webdesigner from the Netherlands. I have also published the Joomla 3 SEO & Performance SEO book. Next to that I also sometimes blog for companies like OStraining, TemplateMonster, SEMrush and others. On the monthly Joomla Community Magazine I have also published a few articles. is not affiliated with or endorsed by The Joomla! Project™. Use of the Joomla!® name, symbol, logo and related trademarks is permitted under a limited license granted by Open Source Matters, Inc.
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