The Sustainable Development Goals are a universal call to action to end poverty, protect the planet and improve the lives and prospects of everyone, everywhere. The 17 Goals were adopted by all UN Member States in 2015, as part of the 2030 Agenda for Sustainable Development which set out a 15-year plan to achieve the Goals.
Today, progress is being made in many places, but, overall, action to meet the Goals is not yet advancing at the speed or scale required. 2020 needs to usher in a decade of ambitious action to deliver the Goals by 2030. (https://www.un.org/sustainabledevelopment/development-agenda/)
The SDGs are made up of 17 Goals. Each goal has a set of targets associated with it. There are also agreed indicators for measuring the SDGs.
The UN SDG web site presents the detail about the targets and indicators of each goal along with reports on progress and other useful information broken down by year. You need to click on the particular goal icon on the landing page to access the information.