I have a big joomla site and I want to customize its links to be as SEF as possible. I need an alias for each individual article and custom component item. Is it better to use the router.php class in each component or to assign a hidden menu item for each one from the perspective of the load on the server and the clean xml generated sitemaps? Thanks in advance
As i understand your question i would like to suggest you to use sh404SEF. It rewrites Joomla URL to user-friendly format (SEF URL or URL rewriting):
For Example:
mysite.com/index.php?option=com_content&Itemid=69&id=34... becomes
mysite.com/en/sh404SEF-and-url-rewriting/list-of-available-plugins.html.
It is also a security component. Page title and meta tags manager for every page. With or without .htaccess file. Joomfish compatible. Caching system for high speed and very small DB queries overhead.
Or as you say you can also use router.php class in each of your component to make sef url. Hope this will help you.