The world of web technology changes at a rapid pace, and old tools retire to make room for new arrivals. In 2016, WordPress continued its rise to dominance after a groundbreaking 2015, when W3Techs announced that one in four websites on the Internet was running WordPress. Bootstrap, a UI framework for quickly putting together and deploying user interfaces, has gained the most new users in 2016. Nginx remained the most popular web server technology, with a 57% market share. Amazon’s AWS package won the crown in 2016, the first time W3 Techs ranked services in this category.
Source: https://www.bleepingcomputer.com/news/software/2016s-most-popular-web-technologies/