Ranking of the ten most central hashtags (according to their values of betweenness centrality) within the DX and the CSX partisan communities.

While some of the DX community hashtags as #portichiusi (‘closed ports’) denotes the clear anti-migration position of such a community, the CSX community is characterised by slogans as #portiaperti (‘open ports’) openly promoting pro-migration positions. The normalized betweenness of each hashtag, multiplied by a factor equal to 108, is reported in parentheses.