As such there are many search engines are there online. One among them is Google. It has many categories like search for google images, web, maps, videos, book, flights and apps. You can specifically search anything on google. Home page of google made up of one search bar. This page is light and works faster even in slow internet connection. Google is very accessible and fast way of finding anything to everything.
Drawback:
There are some of incomplete websites under google search engines.
Sometimes google does not work on android phone until you create account on google.
Many of the times contents are upgraded for long time.