Where is Deribit available?

Could you please clarify for me the availability of Deribit? I'm interested in knowing which regions or countries Deribit is accessible in, as well as any potential restrictions or limitations on usage in certain jurisdictions. Additionally, is there a requirement for users to meet certain criteria or qualifications in order to gain access to Deribit's services? Understanding the accessibility and requirements for using Deribit would be greatly appreciated.