What are the 3 types of search engines?

There are 3 commonly known types of search engines that have been identified during various research projects: navigational, informational and transactional…There are three types of Search engines:

  1. Crawler-based searches. …
  2. Human-powered directories. …
  3. Hybrid searches.

For More Information Please Refer: https://www.quora.com/What-are-the-different-types-of-search-engines-How-many-are-there