Joomla! SEF Component. 

Phoca SEF is a Joomla! component. This component doesn't create SEF links. It is a small component which has three main functions:

• Storing links from sites which end with 404 Error
• Redirecting selected site which ends with 404 Error to new site
• Storing refering sites.

Using this component should be useful e.g. if you did some alternation on your site and your links will be changed (upgrade of Joomla! version, enabled SEF, enabled mod_rewrite, changed structure of content, ...) or if you need to find wrong links on your site. This component stores links from sites which end with 404 Error, so you can set new site where obsolete site will be redirect (301 redirection) to. Searching sites with wrong links (sites which refer to your site) will be simple if you enable "Storing referring sites" parameter. Then you get information about obsolete site and about the referring site too. If the referring site is located on your server, you can fix wrong links on this site very quickly. This can help you for SEO of your site.

For successfully running of this component, Joomla! core file needs to be edited and Search Engine Friendly URLs needs to be enabled in Global Configuration of Joomla!
See documentation (Installation) for getting more information.

Requirements:

• Joomla!1.5 (stable or any later version)
• PHP 4.4.1 (or any later version).

The idea of using core hack (in fact it is only one CTRL-C,CTRL-V) is saving installation of a system plugin and not having the system plugin all the time active. It comes to processing of this script and SQL manipulation only in case when 404 Error site appears. So the Joomla! system is running without running this component (if no 404 Error site is appearing).

This component is suitable for sites which are running standard Joomla! SEF (CoreSEF).