How many .com domain names are unused?

com domain names registered.1 Of these, roughly 1/3 are in use (businesses, personal websites, email, etc.), another 1/3 appear to be unused, and the last 1/3 are used for a variety of speculative purposes. Note that half the domains in this category are GoDaddy parking pages, on which GoDaddy places Google ads based on the keywords related to the domain name. Nearly half of this category appears to be domains sold by HugeDomains, although their website lists only “over 200,000” domains available for purchase (a fraction of their ~4 million domains if the sample is representative).

Source: singaporedatacompany.com