1. Intellectual property issues such as copyright issues or infringement of trademark rights of others are involved.
2. In the process of filing a website, you need to provide the relevant certificates and supporting documents of the website owner. If you can't provide them, then the website can't be filed.
3. The content of the website involves politics, pornography, gambling and other illegal content, and it will also be prohibited from filing.
4. The website is not secure enough, and there is a risk of being attacked by hackers, which will also lead to the failure of filing.