We've listed the top 500 most popular sites in the world based on Domain Authority, a link-based metric that models how Google ranks websites. Each site is listed by the number of other websites that link to them, along with a Domain Authority rangem https://portal.uaptc.edu/ICS/Campus_Life/Campus_Groups/Student_Life/Discussion.jnz?portlet=Forums&screen=PostView&screenType=change&id=aba57bc2-cf23-49dc-811a-06a43be3a0ef