Yahoo hasn't had its own search engine for years. In 2010, they became essentially a frontend for Bing. In a later 2015 deal they switched the backend to using Google.
Duckduckgo is a metasearch engine, technically, but mostly it delegates to Bing.
As far as I can tell, there are only two and a half real search engines that still exist: Bing, Google, and Wolfram Alpha. (I count Alpha as a half because it's not really what most people are looking for.) I'm curious if anyone else knows of other real search engines still in existence.
Duckduckgo is a metasearch engine, technically, but mostly it delegates to Bing.
As far as I can tell, there are only two and a half real search engines that still exist: Bing, Google, and Wolfram Alpha. (I count Alpha as a half because it's not really what most people are looking for.) I'm curious if anyone else knows of other real search engines still in existence.