Search in Umbraco is powered by Examine out of the box, which is a Lucene-based search and index engine for Umbraco. Umbraco provides everything required to have powerful and fast search up and running on your website, but you can also extend or replace the available configuration to exactly match your requirements. This documentation focuses on the Examine implementation.
Examine and Lucene are external parts used in Umbraco. When working with either of the two, we strongly recommend using their official documentation.
Understand how Examine works and walk through the many available options and settings in Umbraco.