Related posts widget uses Relevanssi search engine to display relevant post suggestions. It provides a widget that builds a list of relevant related posts for the opened post.
As far as this plugin based on Relevanssi search ending plugin, it should be installed.
Plugin available for download from WordPress plugin directory or can be installed via standard WordPress plugin installation interface.
- Basic related posts widget based on Relevanssi search engine.
- Configurable number of posts in widget.
- Memcache or file cache is used to cache searches refreshed once per hour.