Twitter crashed around 3:05 p.m. EST on Monday, February 12. There is no information at this time as to why the website crashed, however, it has since resumed regular activity.
Twitter
Twitter is an online news and social networking service where users post and interact with messages, known as “tweets.” These messages were originally restricted to 140 characters, but was doubled to 280 characters for all languages except Japanese, Korean and Chinese in November 2017.
Registered Twitter users can post tweets, but those who are unregistered can only read them. Users access Twitter through its website interface, text message or mobile app. Twitter, Inc. is based in San Francisco, California, United States, and has more than 25 offices around the world.
As of 2016, Twitter had more than 319 million monthly active users.