There are many search engine (SE) available in the world, in which Google serves as the most preferred one. Previously we have learned about Introduction to digital marketing. Here we will be learning through the importance and working structure of google search engine. SE plays a vital role in helping the searcher to find the perfect information, product, and services. The searcher uses a phrase word, normally known as a keyword. The SE takes the keyword as the reference and provides the most relevant page to the user. It connects the searcher with the relevant information or products Also, connects the company or marketing agency with the right and potential customer.