Skip to content

4SEO technical requirements


4SEO runs on Joomla 3, 4 and 5 as follows:

  • Joomla 3: version 3.9.0 or more recent
  • Joomla 4: latest published version only.
  • Joomla 5: latest published version only.

4SEO is only tested with Joomla native multilingual system. If using a 3rd-party multilingual system, 4SEO should generally operate correctly but some or most features may not work as well.

Joomla 3.x support policy

Although this extension generally works fine on Joomla 3, we only officially support the entire feature set on Joomla 4 and up.

What this means is that there can be some new features added or modified that can only work on Joomla 4+. And some features may stop working on Joomla 3 in the future.


  • PHP version 7.1.0 or more recent
  • the Multibyte String PHP extension is required
  • the CURL PHP extension is recommended in all cases and is required for all Google Search Console integration operations

PHP version 7.4.0 or more recent is required to use any of the Google Search Console features.


MYSQL version 5.7 or more recent


4SEO uses modern javascript technologies for its user interface. It requires a modern, "evergreen" browser such as Chrome, Edge, Brave, Firefox and similar, fully updated.

It is not tested on Safari, although it should work there as well.

Internet Explorer is not supported.