It may surprise someone to learn that the English language is a very distant third by number of native speakers: 885 million more people speak Chinese than English. When non-native speakers are taken into consideration, spoken English has to contend in the global language market with Chinese and Hindi. Even if you speak English natively, billions more are speaking another language.
As to representation of these languages on the Internet, the numbers shift considerably again. English, Chinese, and Spanish represent almost 60% of Internet users by language, namely English heads with 29%, Chinese with 22% and Spanish with 8%.