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Basic restrictionsfor domain names

There are a number of basic restrictions concerning the domain names that may be registered below certain top level or second level domains. The following overview is merely an abstract that shall give you an idea of which names are usually not allowed. The overview is not exhaustive, and the restrictions described may not be in effect for every ccTLD.
Possibly forbidden domain names
Names which consist of two characters only
Names that conatin local language characters (allowed for some ccTLDs)
Names of existing top level domains
Geographical names (i.e. names of countries, states, provinces, towns, etc.) of the respective country
Names which consist of trade marks that are registered in the respective country, unless the designated domain holder is the holder of the trade mark himself
Terms, which are considerd as offensive in the respective country
Next to the restrictions listed above, which are based on administrative decisions, there are more, which are normally justified technically or organizational. Among them are restrictions cencerning the length of the domain name (often 63 characters, sometimes even less) and the prohibition of the usage of certain characters at particular positions of the domain name. For example, it is usually forbidden to register a domain name beginning or ending with the character “-”.
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