# Off-Chain Scaling

**These solutions are implemented separately from Layer1**- they make no changes to existing L1 Protocol.
These solutions are known as **[Layer2](/FtkAIz7XQbSnGiqtjtE-cg) Solutions.**

**Types of Layer2 Solutions** =>

- **[Inherits Security from L1](/9zo485wXQ5qX625j0UAVtg)**
- [Optimistic Rollups](/oAb-YoyFQ0S_8HOH1kxqBA)
- [Zero-Knowledge Rollups](/gR0Z0OXFRlWj-mNwjF5nEA)
- [State Channels](/NoDnv9DQRVONf8shuZlVYQ)

- **[Have their own Security](/EAK8di-wSFm9sy-TQR9ouA)**
- [Sidechains](/URn5wvFVR6O6Wzt2k2rbvQ)
- [Plasma Chains](/x7LqTtMPTv6V6ydqfvvGuA)