The adoption of electronic commercial transactions has facilitated cross-border trade and business, but the complexity of determining the place of business and other connecting factors in cyberspace has challenged existing private international law. This comparison of the rules of internet jurisdiction and choice of law as well as online dispute resolution (ODR) covers both B2B and B2C contracts in the EU, USA and China. It highlights the achievement of the Rome I Regulation in the EU, evaluates the merits of the Hague Convention on Choice of Court Agreement at the international level and gives an insight into the current developments in CIDIP. The in-depth research allows for solutions to be proposed relating to the problems of the legal uncertainty of internet conflict of law and the validity and enforceability of ODR agreements and decisions.