Ethereum

ENS smart contract-based domain management is limited by Ethereum's throughput (≈119 TPS) and prohibitively high transaction costs (>$50 per operation), while ENS domains lack compatibility with traditional DNS infrastructure, limiting practical utility.

Users managing assets across multiple blockchains (Ethereum, Polygon, Solana, Layer 2 solutions) must manually switch networks, add new networks, or use bridges. This creates fragmented experiences requiring users to understand network mapping.