The majority of 4,653 active Ethereum (ETH) nodes are in the hands of centralized web providers like Amazon Web Services (AWS), which could “expose Ethereum to central points of failure,” according to crypto analytics platform Messari.
An Aug.15 post shows that three major cloud providers account for 69% of hosted nodes on the Ethereum Mainnet, with over 50% of that coming from Amazon Web Services (AWS), over 15% from Hetzner and 4.1% from OVH.
Figures from Ethernodes additionally show that Oracle (4.1%), Alibaba (3.9%) and Google (3.5%) also provide web hosting services on Ethereum.
cointelegraph.com