A second level domain under the top-level domain (TLD) .top can consist of digits, letters, hyphens and specific special characters while it can have a length of one up to (a maximum) of 63 characters. The private registration (WHOIS privacy) of .top domains is supported, as is the ability to register internationalized domain names (IDNs), which include the character sets Arabic, Chinese (simplified and traditional), Depher French, German, Japanese, Russian, and Spanish. The sense of a spinning toy is separated from this, obscurely related to Dutch top and dop in this sense, against Standard Dutch tol, and French toupie having this sense.