The website name is also called the website domain name. To apply for a domain name, you need to register. For example, if you want to access your server by the name "abc.com", you should apply for this name from the domain name provider. If you want others to access the server through "123 network", you must apply for a Chinese domain name, that is, directly enter Chinese access. As for www.tudou.com, this is a domain name. Netizens access the website by entering the domain name. The name "Potato" was decided by this website itself, and no additional application is required. But if you need to enter "potato" directly in the address bar to access this website, you need to apply for a Chinese domain name.
Website LOGO trademark registration involves intellectual property rights. A trademark is a brand, also called logo, an image symbol of a website and an intangible asset of the website. A registered trademark should be registered in Beijing Trademark Office.