According to NameBio, there were a total of 2,927 “reported” .IO domain sales over the last 5 year period. These top 100 total $993,953.00 in sales. The highest reported sales on this list werethe domains “Tank.io” for $60,000.00 with the second as “Cloud.io” for $45,000.00 (Neither of which are developed). .io is a country code top-level domain (ccTLD) assigned to the British Indian Ocean Territory. The .io domain is administered by the Internet Computer Bureau, a domain name registry company based in the United Kingdom.