How many sites from each region we first detected using Tumblr at specific date periods.
Get a list of 246,281 websites using Tumblr which includes location information, hosting data, contact details, 8,451 currently live websites
which includes 1,371 domains that redirect to sites in the list. 239,201 sites that used this technology previously and 2,826 websites in the United States currently using Tumblr.
Distribution of locations of all Tumblr customers we've ever tracked.