Top 10 largest TLDS by number of reported domain names

The .com and .net TLDs had a combined total of 154.8 million domain name registrations in the domain name base at the end of the first quarter of 2019, an increase of 1.8 million domain name registrations, or 1.2 percent, compared to the fourth quarter of 2018. The .com and .net TLDs had a combined increase of 6.5 million domain name registrations, or 4.4 percent, year over year. As of March 31, 2019, the .com domain name base totaled 141.0 million domain name registrations, while the .net domain name base totaled 13.8 million domain name registrations.

New .com and .net domain name registrations totaled 9.8 million at the end of the first quarter of 2019, compared to 9.6 million domain name registrations at the end of the first quarter of 2018.