The number of currently used domain extensions in 2021.

1 .COM 154,998,433
2 .TK 31,728,538
3 .CN 20,879,943
4 .DE 18,152,144
5. .NET 13,326,297
6 .ORG 10,422,411
7 .RU 9,863,218
8 .CF 9,537,709
9 .GQ 9,138,321