Question: what are search engine websites?
Answer: Google. Google Search Engine is the best search engine in the world and it is also one of most popular products from Google. ... 
Bing. Bing is Microsoft's answer to Google and it was launched in 2009. ... 
Yahoo. ... 
Baidu. ... 
AOL. ... 
Ask.com. ... 
Excite. ... 
DuckDuckGo.