RSS-Extender is extending RSS-Feeds.

Test status of all configs having test cases:

To use cache you need to create subfolder "tmp/" with write permissions (here user is www-data):

• $ mkdir tmp/
• $ chown www-data: tmp/

To enable readability (fallback if regex rules fail) support:

• install composer
• check that readability.php requirements (PHP 7.0+, ext-dom, ext-xml, and ext-mbstring) are installed
• $ composer update

For creating the regular expressions for the config files the web site http://regex101.com/ helps for testing.