1. In general, online signing has certain legal effect, but it is best to sign a paper contract after online signing to ensure the validity of the contract. However, there are also special circumstances. For example, after the online signing, both parties have actively fulfilled their contractual obligations, and this online signing has legal effect.

2. Article 3 of People's Republic of China (PRC) Electronic Signature Law

In civil activities, the parties may agree to use or not use electronic signatures and data messages in contracts or other documents, vouchers and other documents.

A document in the form of electronic signature or data message agreed by the parties shall not be denied its legal effect just because it is in the form of electronic signature or data message.