The most important criterion is whether the provider processes crypto payments natively or through a third-party gateway. Providers using services like BitPay or CoinGate introduce an intermediary that collects your IP address, may require identity verification, and converts your crypto to fiat - defeating many of the privacy benefits of crypto payment. Truly crypto-native providers like AnubizHost run their own payment nodes and process transactions directly.
KYC requirements are the second critical factor. Some hosts accept Bitcoin but still require government ID for account creation. This provides the worst of both worlds: you have an immutable blockchain record of your payment and a verified identity linking it to a hosting account. A genuine crypto hosting provider requires no identity verification whatsoever.
Infrastructure quality matters too. Some budget crypto hosts run on oversold hardware with unreliable networks. Check for SLA guarantees, hardware specifications (NVMe vs. spinning disk, DDR5 vs. DDR4), and the provider's track record for uptime. The cheapest option is rarely the best value when downtime costs you traffic and reputation.