If Web3 Is Decentralized, Why Do DeFi dApps Still Break when the Cloud Goes Down?

Why It Matters

The incident underscores that user‑experience and trust in decentralized finance are vulnerable to traditional cloud outages, turning infrastructure risk into a board‑level concern and a regulatory compliance issue. Reducing this dependency is essential for the credibility and resilience of the broader Web3 market.

Summary

On Oct. 20 a failure in Amazon’s US‑EAST‑1 region cascaded through the crypto ecosystem, causing degraded service at Coinbase, timeouts at Infura and Alchemy, and stalls in several roll‑up sequencers. The outage did not affect blockchain consensus but exposed the heavy reliance of Web3 applications on centralized cloud components such as AWS‑hosted RPC gateways, DNS, indexers and custodial key‑management services. Analysts estimate that 10‑30% of EVM‑based front‑ends could suffer during similar incidents, prompting regulators like the EU’s DORA and the UK’s Critical Third‑Party regime to scrutinize third‑party cloud dependencies. In response, developers are deploying multi‑provider RPC quorum, multi‑CDN/DNS failover, self‑hosted IPFS gateways and emerging decentralized sequencer projects to reduce single‑point‑of‑failure risk.