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Are there any restrictions on what type of domains can be registered with ENS?

Yes, there are restrictions on what type of domains can be registered with ENS.

All domains must adhere to the ENS domain name policy, which states that all domains must be unique and must not infringe upon any existing trademarks or copyrights. Additionally, all domains must be at least three characters long and may only contain letters, numbers, and hyphens. Furthermore, all domains must end in a valid top-level domain (TLD) such as .

eth or .xyz. Finally, certain words are prohibited from being used in domain names due to their offensive nature.

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