Ethereum Layer2 Fees Post-Dencun Upgrade: Transactions Enter the Penny Era, DeFi and NFT Activity Surges

Ethereum Layer2 Ecosystem Sees Fee 'Plunge' After Dencun Upgrade

Ethereum's highly anticipated Dencun upgrade has recently been successfully activated. The core proposal of this upgrade, EIP-4844, aims to significantly reduce the cost for Layer2 networks to submit data to the Ethereum mainnet by introducing "Blob" data storage. Following the upgrade's activation, market attention quickly focused on major Layer2 networks to observe the actual changes in their transaction fees and performance. As financial journalists, we conducted hands-on testing and investigation across several leading Layer2 networks to assess the real-world impact of this upgrade on end-users.

Transaction Cost Testing: From 'Dollar-Denominated' to the 'Penny Era'

Before the Dencun upgrade, while Layer2 transaction fees were far lower than the Ethereum mainnet, costs could still reach several dollars per transaction during network congestion, posing a significant burden for high-frequency DeFi users or small-scale NFT minters. Post-upgrade, the situation has changed dramatically.

Based on our multiple tests on leading networks like Arbitrum, Optimism, Base, and zkSync Era, under normal network conditions, the cost for simple token transfers or swap transactions has generally fallen below $0.05, with some networks even seeing transactions under $0.01. Community users have reported transaction costs of just a few cents during certain periods. Compared to pre-upgrade fees ranging from $0.5 to $2, this represents a reduction of tens to even hundreds of times. Data from blockchain analytics platforms shows a cliff-like drop in the average daily transaction fees for major Layer2 networks after the upgrade.

Transaction Speed & User Experience: Confirmation Times Stabilize

Beyond cost, transaction confirmation speed is another key performance metric. Testing revealed that transaction finality times across Layer2 networks have remained stable post-upgrade, typically completing within seconds to a minute. The Dencun upgrade itself does not directly increase Layer2's internal processing speed. However, by lowering data submission costs, it alleviates the potential need for Layer2 operators to batch transactions due to cost pressures, resulting in a smoother and more predictable transaction confirmation process for users. No transaction delays due to network congestion were observed during the review period.

Ecosystem Response: Signs of Warming DeFi and NFT Activity

The sharp drop in fees has directly stimulated on-chain activity. Trading volumes on leading decentralized exchanges (DEXs) across multiple Layer2 networks showed significant growth in the week following the upgrade. According to data tracking sites like DeFiLlama, daily active addresses and total transaction counts on some Layer2 networks have reached or approached all-time highs.

For DeFi users, low fees make frequent asset rebalancing, liquidity provision, and farming strategies truly economically viable. Users with smaller capital who previously hesitated due to costs are now participating more actively in on-chain financial activities. In the NFT space, minting and transfer costs as low as a few cents have drastically lowered the barrier to entry for creators and collectors. Some emerging NFT projects and gaming applications have reported noticeable increases in user engagement and transaction frequency post-upgrade.

Future Outlook: Fee Reduction is the Starting Point for Ecosystem Prosperity

The fee 'plunge' brought by the Dencun upgrade has undoubtedly injected a strong stimulant into the Ethereum Layer2 ecosystem. It addresses one of the long-standing core pain points for users, making "cheap and fast" not just a marketing slogan but a tangible daily experience. This clears a major obstacle for mass adoption.

However, lower fees are just the foundation. The long-term competitiveness of the Layer2 ecosystem will also depend on its security, degree of decentralization, the maturity of developer tools, and the construction of unique application scenarios. Currently, market competition remains fierce, with Layer2s following different technical paths (like Optimistic Rollup and ZK-Rollup) still showcasing their strengths in performance, compatibility, and ecosystem development. It is foreseeable that with the cost barrier significantly weakened, competition within the ecosystem will shift more towards application innovation and the refinement of user experience.

Risk Disclosure

The above content is based on publicly available market information and hands-on testing. It is solely an investigation and analysis of the current industry state and does not constitute any investment advice. The cryptocurrency market is highly volatile, and Layer2 technology is still in a rapid development phase, potentially harboring unforeseen technical or market risks. Readers should conduct their own thorough research and assess their personal risk tolerance before participating in any on-chain activities.