New York: Google turned 13 on Tuesday, marking the search engine giant's entry into the teens, and has made its homepage a birthday celebration scene.

Google's home page shows its 5-letter logo wearing hats and placed behind a birthday cake, with colourful balloons and wrapped gifts around it.

Google founders, Larry Page and Sergey Brin, built their first search engine in 1996. Although, the company had filed for incorporation on September 4, 1998, and domain was registered on September 15, it officially celebrates its birthday on September 27.

The birthday comes amid teen pangs as Google faces scrutiny from the US authorities for possible misuse of its dominant position in the Internet space.

Besides, the company faces intense competition from the social networking site Facebook.