Starknet mainnet hit by fresh downtime as team probes cause

Starknet, an Ethereum ZK‑rollup network used for decentralized finance and gaming, is facing mainnet downtime following previous outages in 2025.

Starknet, an Ethereum layer‑2 network that uses zero‑knowledge (ZK) rollups, is experiencing fresh mainnet disruption as the project enters 2026.

In an X post, the Starknet team said the network was facing downtime and that engineers were “actively investigating the issue and working to restore full functionality as quickly as possible,” without immediately disclosing a root cause. At the time of writing, the network had been experiencing downtime for just over two hours.

​Starknet is a ZK‑rollup–based layer 2 that batches transactions offchain and posts cryptographic proofs to Ethereum, aiming to deliver higher throughput and lower fees for smart contracts, decentralized finance and gaming applications while inheriting Ethereum’s base‑layer security. 

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