Category - Operating Systems
List of 5,036,034 websites that use Operating Systems| Domain | Country | Rank | Contacts |
|---|---|---|---|
 Singapore | 105 | ||
| Singapore | 148 | ||
 United States | 220 | ||
| United States | 280 | ||
| United States | 511 | ||
 Canada | 532 | ||
| Canada | 585 | ||
| United States | 811 | ||
 Germany | 931 | ||
| United States | 983 | ||
| Germany | 993 | ||
| United States | 1,035 | ||
| United States | 1,038 | ||
 Czech Republic | 1,089 | ||
| Czech Republic | 1,186 | ||
| United States | 1,222 | ||
| Singapore | 1,243 | ||
| Singapore | 1,244 | ||
 Sweden | 1,425 | ||
| United States | 1,432 |